List of Waterproofing, moisture-proofing and humidity control materials products

You won't have time to evacuate from the earthquake to the tsunami's arrival! This is a "tsunami shelter" that dramatically increases survival rates against the tsunami approaching at a tremendous spe...

• Basement unit/disaster prevention shelter

Since the construction-generated soil will be recycled on-site, the disposal costs for leftover soil and the costs for new purchases will be significantly reduced. 【Disaster Prevention】

• Special Construction Method

Protecting against groundwater pressure. A high-performance waterproof system that supports complete peace of mind.

• Waterproof sheet

For waterproofing/leak prevention and crack prevention of NATM tunnels! A wide variety is available.

• Waterproof sheet

Just by submerging it in water for 2 minutes, a 270g bag turns into a 20kg sandbag! Designed with handles, it is user-friendly for women and the elderly, and improves work efficiency!

• Humidity control materials
• Safety and consumables
• Sandbags

Dyed straw and hemp wall pattern "Ayaka"

• Diatomaceous earth moisture control material
• Interior construction
• Interior coating materials

Would you like to beautify the appearance of the construction site? It is also suitable for ensuring safety from falling objects and preventing scattering.

• Waterproof sheet

Using it inside the scaffolding can prevent gaps next to the long span.

• Waterproof sheet

It has been treated with flame retardant processing and has passed the fire prevention product disaster prevention test certified by the Building Standards Act and the Fire Department, as well as the ...

• Waterproof sheet

[Free Sample] Expands from 0.4kg to 15kg in 5 minutes! A water-absorbent sandbag that can be completed with just water, without adding soil. UV-cut vacuum packaging ensures safety even during disaster...

• Humidity control materials
• Safety and consumables
• Waterproofing work

[Free sample available!] Solving issues with sandbags such as "Need for soil and tools..." and "Transportation of soil becomes cumbersome..."! Water-absorbent sandbags that expand with water.

• Humidity control materials
• Safety and consumables
• Waterproofing work

Easily cut by hand! Durable and weather-resistant airtight waterproof tape.

• Waterproof tape, adhesive, drain, protective panel

A lightweight, breathable, waterproof sheet that is strong against tension and tearing, and resistant to corrosion and deterioration.

• Waterproof sheet

By simply applying it over the joints and seams of the solar panels, reliable waterproofing (sealing) can be achieved!

• Renovation and repair methods
• Waterproof sheet

Low cost and long-lasting. It is a colorless, transparent silicone-based water repellent agent that can be applied over exterior wall paint. It coats the exterior walls with a water-repellent layer, p...

• Coating film waterproofing material/permeable waterproofing material
• Coating film waterproofing material/permeable waterproofing material

Product samples are currently being offered! Please give it a try! It is also ideal for exposed concrete and mortar walls, where moisture can cause significant damage.

• Coating film waterproofing material/permeable waterproofing material
• Coating film waterproofing material/permeable waterproofing material

Long-lasting at a low cost. Free samples available! Please give it a try!

• Coating film waterproofing material/permeable waterproofing material
• Coating film waterproofing material/permeable waterproofing material

Low cost and long-lasting. It is a silicone-based water repellent that suppresses the penetration of rainwater into exterior walls and protects them. It has moisture-permeable properties to prevent in...

• Coating film waterproofing material/permeable waterproofing material
• Coating film waterproofing material/permeable waterproofing material

A specialized trading company that handles chemical products and materials for civil engineering and construction!

• Reinforcement and repair materials
• Other flooring materials
• Coating film waterproofing material/permeable waterproofing material

Achieves excellent waterproofing and durability. Lightweight and easy to install. Reduces construction waste, thereby minimizing work burden and costs.

• Waterproofing work
• Coating film waterproofing material/permeable waterproofing material
• Coating film waterproofing material/permeable waterproofing material

A vapor-permeable sheet with variable permeability performance according to humidity.

• Coating film waterproofing material/permeable waterproofing material

FRP drain made by a waterproof company, fits securely into PVC pipe VU75, specialized FRP drain by Iwata Corporation.

• Roof drain
• Waterproof tape, adhesive, drain, protective panel
• Coating film waterproofing material/permeable waterproofing material

Waterproof house created FRP drain that fits securely into PVC pipe VU65, specialized FRP drain by Iwata Co., Ltd.

• Roof drain
• Coating film waterproofing material/permeable waterproofing material
• Waterproof tape, adhesive, drain, protective panel

Waterproof house created FRP drain that fits securely into PVC pipe VU50, specialized FRP drain by Iwata Co., Ltd.

• Roof drain
• Waterproof tape, adhesive, drain, protective panel
• Coating film waterproofing material/permeable waterproofing material

FRP drain made by a waterproof company, securely fits into PVC pipe VU100, specialized FRP drain by Iwata Co., Ltd.

• Roof drain
• Waterproof tape, adhesive, drain, protective panel
• Coating film waterproofing material/permeable waterproofing material

No worries about water leakage with high adhesion! FRP drains born from over 20 years of waterproofing experience.

• Roof drain
• Waterproof tape, adhesive, drain, protective panel
• Coating film waterproofing material/permeable waterproofing material

Solve your waterproofing problems with drains! High adhesion to pipes and easy to install!

• Roof drain
• Waterproof tape, adhesive, drain, protective panel
• Coating film waterproofing material/permeable waterproofing material

Product development leveraging the experience of waterproofing contractors! Improving workability with hidden innovations.

• Roof drain
• Waterproof tape, adhesive, drain, protective panel
• Coating film waterproofing material/permeable waterproofing material

Development of FRP drains utilizing waterproof construction know-how! Solving questions based on unique knowledge and experience.

• Waterproof tape, adhesive, drain, protective panel
• Drainage and ventilation equipment
• Roof and gutter construction

Reliable products for professional use. Yet, individuals can purchase from "one piece"! Iwata's convenient online ordering.

• Waterproof tape, adhesive, drain, protective panel
• Coating film waterproofing material/permeable waterproofing material
• Roof drain

A wealth of basic knowledge about drains and related waterproofing fundamentals is available!

• Waterproof tape, adhesive, drain, protective panel
• Coating film waterproofing material/permeable waterproofing material
• Roof drain

High-end custom home builders are very satisfied! Case study of the introduction of a strainer that combines functionality and aesthetics.

• Coating film waterproofing material/permeable waterproofing material
• Waterproof tape, adhesive, drain, protective panel
• Roof drain

Case study of the introduction of the reliable drain "F-1" that leads to cost reduction.

• Waterproof tape, adhesive, drain, protective panel
• Roof drain
• Coating film waterproofing material/permeable waterproofing material

Easy installation and construction achieve reduced construction time and reliable work. Horizontal drainage using water supply PVC pipe VU50 resolves the issue of puddles around the drain!

• Roof drain
• Waterproof tape, adhesive, drain, protective panel
• Coating film waterproofing material/permeable waterproofing material

No more complaints and reduced working hours! Case study of the introduction of the horizontal drain "Y-1".

• Waterproof tape, adhesive, drain, protective panel
• Roof drain
• Coating film waterproofing material/permeable waterproofing material

Successfully shortened construction time! Introduced Iwata Drain "F-1" for FRP waterproofing work.

• Waterproof tape, adhesive, drain, protective panel
• Roof drain
• Coating film waterproofing material/permeable waterproofing material

I want to provide good things! Here are examples of cases where we were adopted as a novelty.

• Waterproof tape, adhesive, drain, protective panel
• Coating film waterproofing material/permeable waterproofing material
• Roof drain

Rich product variety! We can offer proposals tailored to our customers, leading to increased customer satisfaction and more orders.

• Waterproof tape, adhesive, drain, protective panel
• Coating film waterproofing material/permeable waterproofing material
• Roof drain

[Case Study] Just fitted snugly into the existing drain! Yet, it resulted in a finish that provides "peace of mind." Introduced Iwata Drain "P-50" for renovation.

• Waterproof tape, adhesive, drain, protective panel
• Coating film waterproofing material/permeable waterproofing material
• Roof drain

No worries even in a guerrilla downpour! The introduction of Iwata's large-diameter overflow system, which even the management of design firms agrees with.

• Waterproof tape, adhesive, drain, protective panel
• Coating film waterproofing material/permeable waterproofing material
• Roof drain

The usual repair drain cannot be used! Achieve a clean finish with Iwata's FRP drains F-65 and F-75 while maintaining almost the same drainage efficiency.

• Waterproof tape, adhesive, drain, protective panel
• Coating film waterproofing material/permeable waterproofing material
• Roof drain

The "horizontal strainer" that makes your balcony look beautiful is compatible with various sizes of drains. It is made of aluminum die-cast, making it very durable!

• Roof drain
• Waterproof tape, adhesive, drain, protective panel
• Coating film waterproofing material/permeable waterproofing material

"Vertical strainer" that makes your balcony look beautiful. It can accommodate various sizes of drainage outlets. Made of aluminum die-cast, it is very durable!

• Roof drain
• Waterproof tape, adhesive, drain, protective panel
• Coating film waterproofing material/permeable waterproofing material

FRP drain for thick-walled PVC pipe VP50 [P-50], slightly smaller than F-1, making it suitable for renovation use!

• Roof drain
• Coating film waterproofing material/permeable waterproofing material
• Waterproof tape, adhesive, drain, protective panel

Overflow for FRP waterproofing (using PVC pipe VU40) - Please choose something you can trust, as it is the last line of defense for drainage.

• Roof drain
• Waterproof tape, adhesive, drain, protective panel
• Coating film waterproofing material/permeable waterproofing material

FRP drain made by a waterproof company, fits securely into PVC pipe VU50, specialized FRP drain by Iwata Co., Ltd.

• Roof drain
• Waterproof tape, adhesive, drain, protective panel
• Coating film waterproofing material/permeable waterproofing material

Easy installation and construction achieve reduced construction time and reliable work. Perfectly fits the water supply PVC pipe VU50, eliminating the issue of disconnection!

• Roof drain
• Waterproof tape, adhesive, drain, protective panel
• Coating film waterproofing material/permeable waterproofing material