Newsletter now being distributed! Delivering information to solve the sounds in living spaces!

【Sample available!】Just stick it on Galvalume steel sheets. The industry's thinnest class at 0.55mm for roof rain noise reduction.

【Features】 ■Industry's thinnest!! A tape with a thickness of 0.55mm solves rain noise issues. ■Reduces indoor and outdoor rain noise by 10dB. ■Only requires 30% coverage relative to the width of the roofing material. ■Adheres firmly without hardening even in winter conditions. ■Easily cut with scissors or a cutter. For more details, please check the link to the Iida Sangyo website below. You can request and confirm the following items on the website: - Sample requests are welcome. Please feel free to contact us. - View videos measuring rain noise at a rainfall rate of 100mm/h. - View installation videos. - Free download of technical materials (effects when applying drainage hardware, performance comparison with insulation boards, durability, etc.) Past adoption examples: - Insulation boards stored outdoors became wet and unusable due to rain. With this product, indoor storage is possible without taking up much space. - Soundproof sheets were too heavy and difficult to install, so I wanted something easier to work with. - Now I can propose a combination of Galvalume roofing and vibration control tape to clients concerned about rain noise.

• Others/Roofing materials (shingles, cement, steel sheets, aluminum)

【Sample Giveaway!】Make walls thinner. Easily install by simply sticking it onto gypsum boards to combat noise! Lighter than soundproof sheets, reducing the burden on workers!

Iida's unique vibration-damping soundproofing technology, which does not rely on traditional soundproofing methods of "thick and heavy," creates a quiet and comfortable living space. Easily implement noise control by simply sticking and sandwiching it onto gypsum board! It is lighter than soundproof sheets, reducing the burden on workers. Iida Sangyo's vibration-damping material 'Zetro NV-αII' is a 0.5mm thick wall vibration-damping tape that "converts vibrations into heat to achieve soundproofing." By simply sticking it between double layers of gypsum board, the TLD-45 wall is upgraded to TLD-50. It improves the coincidence phenomenon around 2kHz by 5dB. 【Features】 - Easy installation by simply sticking and sandwiching onto gypsum board - Adhesive tape requires no glue - Reduces installation time by approximately 70% compared to soundproof sheets - Lighter than soundproof sheets, reducing the burden on workers *For more details, please refer to the PDF document or feel free to contact us.

• Soundproofing Sheet

[Sample available now!] Make walls thinner. Simple installation by just sticking and sandwiching it with gypsum board for noise reduction! Lightweight, which also reduces the burden on workers.

Iida's unique vibration-damping soundproofing technology, which does not rely on traditional "thick and heavy" soundproofing methods, creates a quiet and comfortable living space. Easily tackle noise issues with simple installation by just sticking and sandwiching it onto gypsum boards! Its lightweight design also helps reduce the burden on workers. Iida Sangyo's vibration-damping material, 'Zetro NV-αII', is a 0.5mm thick wall vibration-damping tape that "converts vibrations into heat to block sound." By simply sticking it between double layers of gypsum board, the TLD-45 wall is upgraded to TLD-50. It improves the coincidence phenomenon around 2kHz by 5dB. 【Features】 ■ Easy installation by just sticking and sandwiching onto gypsum boards ■ Adhesive tape eliminates the need for glue ■ Reduces installation time by approximately 70% compared to our previous methods ■ Lightweight design reduces the burden on workers *For more details, please refer to the PDF document or feel free to contact us.

• Soundproofing Sheet

To follow the "movement" of the flooring, no lifting, cracking, or buckling! No need for underlayment or carpentry! An adhesive that is easy to apply, has good disassembly properties, and is user-friendly for workers!

Product Name: IB Bond 【Features】 ✓ Elastic adhesion prevents cracking and lifting ✓ No need for plywood or calking ✓ Easy to apply even in cold weather ✓ Can absorb unevenness with a dedicated notched trowel ✓ Excellent dismantling properties, ideal for floor replacement Unlike conventional adhesives (urethane-based adhesives) that rigidly fix the movement of flooring materials, IB Bond "follows the movement" of the flooring, alleviating the stress that causes warping and lifting. IB Bond is a modified silicone-based adhesive with a solvent-free formulation. There is no solvent odor typically associated with conventional adhesives. It remains soft even in cold weather, allowing for quicker and easier application. * This reduces the burden on workers and can cut dismantling time by about 50% compared to conventional adhesives. * Please refer to the "Dismantling Comparison Video with Conventional Products" on our website.

• Other flooring materials

[Sample Available] Just lay it out; a one-piece unit that doesn't require any adhesive! Equivalent to LL-45 sound insulation and the same thermal insulation as high-performance glass wool insulation 48K!

Product Name: Chardan OY430 [Features] ✔ No need for underlayment; low height of 43mm! ✔ Integrated soundproofing and insulation unit ✔ Easy installation by simply laying it down; installation time approximately 3 hours for 50m² (according to our research) ✔ High impact absorption performance equivalent to tatami mats This is a floor soundproofing material that can be laid under flooring with a thickness of 43mm. Being a bottom layer, it fits well under window frames! Due to its structure filled with special sound-absorbing material, it provides both soundproofing performance and insulation effect simultaneously. OY430 Thermal conductivity: 0.040 [W/(m·K)] OY430HS Thermal conductivity: 0.033 [W/(m·K)] * OY430HS is a high insulation version of OY430. Its composition and basic performance (thickness/soundproofing/constructability/safety) are equivalent to OY430. Using our uniquely designed "OY Joint," we achieved innovative construction that reduces labor and noise during installation. It features high impact absorption similar to tatami mats, ensuring safety during falls. It is also recommended for use in facilities for the elderly and kindergartens.

• Renovation and repair methods

[Sample available!] Just by sticking it to the underside of a metal roof, you can reduce rain noise. With about 30% coverage relative to the roof width, the effect is outstanding!

Product Name: Zetoro NV-αII 【Features】 ✓ Just apply 30% of the width of the roofing material! ✓ Reduces indoor and outdoor rain noise by 10dB ✓ Industry’s thinnest! Despite being only 0.55mm thick, it effectively addresses rain noise ✓ Can be applied without hardening even in winter conditions ✓ Easily cut with scissors or a cutter Metal roofs excel in durability, aesthetics, and ease of installation, but their soundproofing performance is insufficient. The vibration-damping tape solves rain noise issues. The vibration-damping tape applied to the metal roof converts the vibrational energy from falling raindrops into thermal energy, thereby suppressing the generation of rain noise. The roofs of residences with the tape applied reduce noise not only indoors but also outdoors. Zetoro NV-αII, which reduces rain noise by applying just 30% of the width of the roofing material, can be used in cover methods during new construction or renovation.

• Renovation and repair methods

【Sample Giveaway!】Concentrating unique technology into units, providing overwhelming construction efficiency and a comfortable living space.

Shardan supports comfortable living in collective housing such as condominiums and apartments from the floor up, thanks to its excellent soundproofing and thermal insulation properties. It accommodates a wide range of flooring materials, including solid wood flooring and SPC flooring, and mitigates impact noise transmitted from upper floors to lower floors. **Features of Shardan** ☆ Integrated soundproofing and insulation unit With a low floor thickness of 40mm, it can secure a space that is "more than 100mm higher than the standard ceiling height." Soundproofing: Industry-first! Achieves floor sound insulation performance of "LL-45" with a thickness of only 40mm, obtaining ΔLL(II)-3S. Thermal insulation: Uses sound-absorbing insulation material that demonstrates thermal conductivity equivalent to "high-performance glass wool insulation 48K." Ease of installation: Compared to dry double flooring, it "reduces installation time to less than 1/3," with simple laying using specially designed fastening components. Safety: Provides "high shock absorption" equivalent to tatami mats, improving safety during falls. **Shardan Lineup** ◯ SPF400 / SPF400HS A multi-type that does not limit finishing materials. *SPF400HS is a high thermal insulation version of SPF400.* ◯ OY430 / OY430HS A low-construction type that does not require a subfloor. *OY430HS is a high thermal insulation version of OY430.*

• Double Floor System

[Sample Presentation] Easy installation with soundproofing performance equivalent to LL-45 and insulation performance comparable to high-performance glass wool insulation 48K! 40mm thick low-floor base material.

Product Name: Chardan SPF400 【Features】 ✔ Low height of 40mm! ✔ Integrated soundproofing and insulation unit ✔ Reduced construction time to less than 1/3 compared to dry double flooring! (In-house research) ✔ Achieved LL-45 with SPC flooring! A multi-type that does not limit the choice of top material This is a floor soundproofing material laid under flooring with a thickness of 40mm. It has been certified for performance with SPC flooring, which is said to be thin and hard, making it difficult to ensure soundproofing performance. With Chardan SPF400, SPC flooring can be used not only in commercial facilities but also in apartment buildings and welfare facilities where soundproofing and insulation functionality is required. Since it is a form that fills the underfloor space with special sound-absorbing material, it provides both soundproofing performance and insulation effect simultaneously. SPF400 Thermal conductivity: 0.040 [W/(m·K)] SPF400HS Thermal conductivity: 0.033 [W/(m·K)] * SPF400HS is a high insulation version of SPF400. The composition and basic performance (thickness/soundproofing/constructability/safety) are equivalent to SPF400. By using dedicated edge treatment materials and fastening components, we achieve innovative construction that reduces construction time and noise.

• Tile/Indoor

【Sample Giveaway!】Just 0.5mm. Simply sandwich it between gypsum boards to elevate the soundproofing performance of your walls by one level.

【Features】 - With a thickness of 0.5mm, there is no significant design change required. - Improves the coincidence phenomenon around 2kHz by 5dB. - Lighter than soundproof sheets, reducing work burden. - Installation time can be reduced by 70% compared to soundproof sheets. The wall vibration control tape utilizes Iida's unique "vibration control soundproofing technology" that does not rely on thickness or weight. It is mainly adopted in apartment buildings. For more details, please check the Iida Industry website at the link below. You can request and confirm the following items on the website: - Sample requests are welcome. Please feel free to contact us. - A series of installation videos showing how to apply it to gypsum boards. - The mechanism of vibration control soundproofing and soundproofing performance regarding partition walls. - Auditory confirmation of the effects on partition walls. For more details on vibration control soundproofing technology, please check the website below. https://kenzai-orotex.jp/technology/wallfloor.php The browsing items on the website include: - The mechanism of vibration control soundproofing. - Experimental videos confirming the effects of vibration control soundproofing, etc. If you are having trouble with the sound environment in your home, please consult Iida Industry.

• Soundproofing Sheet

[Sample Available] A one-piece unit that only needs to be laid out and does not require disposal! Equivalent sound insulation to LL-45 and insulation performance comparable to high-performance glass wool insulation 48K!

Product Name: Chardan OY430 【Features】 ✔ No need for disposal; low height of 43mm! ✔ Integrated soundproofing and insulation unit ✔ Easy installation by simply laying it down; installation time is approximately 3 hours for 50m² (according to our own research) ✔ High impact absorption performance equivalent to tatami mats This is a floor soundproofing material that can be laid under flooring with a thickness of 43mm. Being a bottom layer, it fits well under window frames! Since it fills the underfloor space with a special sound-absorbing material, it provides both soundproofing and insulation effects simultaneously. OY430 Thermal Conductivity: 0.040 [W/(m·K)] OY430HS Thermal Conductivity: 0.033 [W/(m·K)] * OY430HS is a high insulation version of OY430. The composition and basic performance (thickness / soundproofing / workability / safety) are equivalent to OY430. Using our uniquely designed "OY Joint," we achieved innovative construction that reduces labor and noise during installation. It features high impact absorption similar to tatami mats, ensuring high safety during falls. It is also recommended for use in facilities for the elderly and kindergartens.

• Renovation and repair methods

[Sample Available!] Direct floor soundproofing substrate with the performance of "L-45"

**Features** - 43mm low floor height ensures sufficient ceiling height - Low floor height allows for good fitting under window frames - Reliable floor sound insulation performance (L-45 certified by a third-party organization) - Easy installation with no need for a base layer, just lay it down - High shock absorption comparable to tatami (approximately G50) Please consider for hotels, condominiums, and apartments. For more details, please check the link to the Iida Sangyo website below. You can request and confirm the following items on the website: - Request for samples - Free download of product CAD data - Viewing of actual installation videos (installation time: approximately 3 hours for 50m²) Adoption examples * Photos of examples can be viewed on the Iida Sangyo website. - A yoga studio wants to open in a commercial building, but sound insulation is necessary due to a tutoring school below. → Ensured sound insulation while maintaining a ceiling height with a low floor of 43mm. No complaints from below. - A request was made to renovate from tatami/straight-laid cushion flooring to hardwood flooring. → Achieved the same floor height of 55mm as tatami, accommodating barrier-free access by applying it to the original cushion flooring area.

• Soundproofing panels

[Sample available!] Just by sticking it to the underside of a metal roof, you can reduce rain noise. With about 30% coverage relative to the roof width, the effect is outstanding!

Product Name: Zetoro NV-αII 【Features】 ✓ Just apply 30% of the width of the roofing material! ✓ Reduces indoor and outdoor rain noise by 10dB ✓ Industry’s thinnest! Despite being only 0.55mm thick, it effectively addresses rain noise ✓ Can be applied without hardening even in winter conditions ✓ Easily cut with scissors or a cutter Metal roofs excel in durability, aesthetics, and ease of installation, but their soundproofing performance is insufficient. The vibration-damping tape solves rain noise issues. The vibration-damping tape applied to the metal roof converts the vibrational energy from falling raindrops into thermal energy, suppressing the generation of rain noise. The roofs with the applied vibration-damping tape reduce noise not only indoors but also outdoors. Zetoro NV-αII, which reduces rain noise by applying just 30% of the width of the roofing material, can be used in cover methods during new construction or renovation.

• Renovation and repair methods

Introducing butyl tape in sizes not available in the market! A presentation of waterproof tape.

We have turned vibration-damping butyl rubber used in automobiles into waterproof tape. This is possible because we handle hundreds of different sizes of automotive parts! We can propose options tailored to your desired size! ◇Examples of Use◇ Waterproofing for roofing in single-family homes Waterproofing for balcony saddle areas Waterproofing during solar panel installation Waterproofing for seams in waterproof sheets If you are interested, please feel free to contact us!

• Waterproof tape, adhesive, drain, protective panel

Seven types of fire-resistant materials developed in-house!

○Heat-expanding refractory material "Bantect" Available in all forms from molded products made of rubber and resin to paste-like products! Expands at approximately 200°C or higher during the initial stages of a fire! The material expands at the temperature of initial combustion in a fire, blocking the space that would allow flames to spread. Designed with halogen-free formulations to comply with environmental regulations. We can provide product recommendations based on the situation. Please feel free to consult with us.

• Special Construction Method

Materials expand at temperatures above 220℃, blocking flames and heat transfer! Suppresses scattering after combustion.

The "Bantect Series" is a thermally expandable fireproof material that expands at temperatures above 220°C, blocking the transmission of flames and heat, and suppressing the scattering after combustion due to the effects of flame retardant additives. We also offer other products such as "Bantect MG (vulcanized rubber type)" which can be vulcanized and molded at 170°C (for 7 minutes or more), and "Bantect MJ (injection molded type)" which features high flexibility and durability. 【Features (partial)】 ■ Bantect Series - Material expands at temperatures above 220°C, blocking the transmission of flames and heat - Suppresses scattering after combustion due to the effects of flame retardant additives - Suitable products can be selected based on the application and construction method ■ Bantect MG (vulcanized rubber type) - Can be vulcanized and molded at 170°C (for 7 minutes or more) - Allows for the design of products with three-dimensional shapes through mold forming *For more details, please refer to the PDF document or feel free to contact us.

• others

Prevention of floor cracking and lifting: No need for waste plywood or calp.

【Features】 ■ Can be directly applied to slab substrates ■ Elastic adhesive eliminates the need for backer board on flooring ■ Moderate elasticity follows the expansion and contraction of flooring, preventing cracking and lifting ■ Easy to apply even in cold weather ■ Solvent-free type that is environmentally friendly ■ Superior dismantling properties compared to traditional rigid polyurethane adhesives, making it ideal for floor replacement For more details, please check the Iida Sangyo website. https://kenzai-orotex.jp/product/ibbond.php You can confirm the following items on the website: - Comparison of construction methods and compositions using traditional rigid types and elastic adhesives. - Videos showing that the notched trowel can be used to hold and adjust unevenness. - Results demonstrating flooring lifting tested in our own laboratory. - Installation videos are available (installation time: approximately 3 square meters, 2 minutes and 38 seconds). - Videos comparing dismantling properties with rigid adhesives (approximately 50% reduction). - Product catalogs and installation manuals are available for free download, so please make use of them.

• glue

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 【May 20 (Wed) - May 22 (Fri), 2026】 'AM EXPO Nagoya' (2-2 Kanjo Futo, Minato Ward, Nagoya City) https://www.intermold.jp/nagoya/am_expo/ ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ AM EXPO is a specialized exhibition focused on additive manufacturing (AM) technologies, including 3D printing of metals and resins. It gathers the latest technologies and solutions related to all stages of manufacturing, from design, materials, and shaping to post-processing and quality evaluation, and is recognized as a platform for disseminating information that supports innovation in the manufacturing industry. At Fuji High Frequency Industry, you can experience cutting-edge solutions that bring innovation to the manufacturing field, such as design optimization (DfAM), powder and wire DED technology, and high-precision quality evaluation technology, through actual machines and panel displays. If you have the time, we would love for you to visit us. ★Booth Number★ 1-201 [Japan AM Association Booth] *Pre-registration is required for attendance.

This training is designed for those who are expected to play an active role in guiding new employees and junior colleagues, as well as serving as OJT leaders, to foster greater confidence and pride, contributing not only to the growth of new employees but also to their own development and careers. The training will focus on: 1. A positive role recognition 2. Understanding the environment and values that have nurtured young employees 3. The desired image of an OJT leader 4. Skill sets for development We will conduct lectures and training from both a mindset and skills perspective. We believe that discussions with participants from other companies will provide an effective opportunity to deepen the understanding of our company's strengths and challenges, and we look forward to your enthusiastic participation. 【Main Content】 - "Mindset" for OJT leaders - Reframing - Benefits of being an OJT leader - Historical background and changes in values that have shaped young employees - What new employees seek from their supervisors and seniors - Building a foundation as an OJT leader - Meaning-making in work - Skill sets as an OJT leader - Steps for advancing OJT - Formulating a development plan - Methods of guidance (teaching and coaching) and more. *For inquiries and applications, please contact us via our website or by phone.

Starting from June 2025, the Labor Safety and Health Regulations will be revised, making it a mandatory obligation with penalties that could include "imprisonment or fines" for failing to take measures. On the other hand, the number of casualties due to heat stroke last year reached a record high of 1,681. In this webinar, based on the latest heat stroke data, we will explain why heat stroke measures are being emphasized so much right now, the background behind it, how to utilize subsidies to keep implementation costs down, and specific solutions for efficiently cooling multiple people with just one unit, all condensed into 30 minutes. ＼Especially recommended for the following individuals／ - Safety and health personnel or those considering equipment installation - Those who want to proceed with equipment installation while keeping costs down by utilizing subsidies - Those facing the challenge of "taking measures but not achieving sufficient results."

This forum is designed to provide insights that can be utilized in human resource development and global initiatives, based on the belief of "supporting the productivity of global organizations from the perspectives of people and organizations." This year's theme is "Harnessing Diversity as Strength: Evolving Organizations through Engagement." In recent years, it has become commonplace for diverse talent to work together. However, many organizations are still unable to fully leverage diversity due to differences in values and assumptions that hinder deep dialogue, leading to hesitation and division. In this context, the concept of "engagement" is being re-examined. It is not merely about comfort; rather, it requires exchanging opinions across differences, participating in decision-making, and proactively acting towards organizational outcomes. This forum will provide an opportunity to re-evaluate the relationship between diversity and engagement, and to rethink your organization's human resource development and global initiative design.

Kort Valuta will be speaking at the 13th Franchise Business Owners Gathering, where we will present a case study. This session features a special keynote by Mr. Masahiro Kaneko of AQUA Co., Ltd., operator of the fast-growing building maintenance franchise “Build’s,” which has achieved over 120% growth each year. ✔ 10,000+ contracted properties ✔ 460 franchise owners ✔ Recipient of the Japan Quality Award (Encouragement Prize) The event will explore practical insights into building high-performing franchise organizations and strengthening relationships with franchise owners. Kort Valuta will also introduce a case study on how our next-generation wallet, TwooCa, supports employee engagement and internal DX initiatives through digital IDs and e-money solutions. This is a hybrid event (in-person + online), and we welcome your participation. May 22, 2026 | 14:00–17:00 (JST) Register here:https://linkly.link/2inR2 #Franchise #BusinessLeadership #FranchiseOwners #DigitalTransformation #EmployeeEngagement #Fintech #TwooCa