Nittobo's glass fiber, which is used to reinforce coating film waterproofing, does not corrode and makes construction easy. Users can choose from among glass fiber products according to the purpose of use.
Nittobo offers a lineup of reinforcements for urethane, acryl rubber, and rubber asphalt waterproof materials for coating films. Nittobo's glass fiber pays full attention to adhesive performance and ease of construction and has shown excellent results. Please choose the most suitable one according to the purpose of use or application.
Braided glass cloth
This is braided cloth produced by combining glass yarn in a grid-like fashion and joining it with an adhesive without weaving.
It is called “braided glass cloth” because it is produced without weaving glass yarn.


Specifications (standard)
| Product code | Manner of weaving | Thickness mm |
Width mm |
Weight g/m2 |
Density (/25mm) |
Tensile strength (N/25mm) |
Length m |
Sealing | ||
|---|---|---|---|---|---|---|---|---|---|---|
| Warp | Weft | Warp | Weft | |||||||
| KC 0505B 104 EV2 | Biaxial | 0.24 | 1040 | 43 | 5 | 5 | >196 | >196 | 100 | EVA-based |
| KC 0808B 104 AD1 | Biaxial | 0.24 | 1040 | 64 | 8.3 | 8.3 | >294 | >294 | 100 | Acrylic-based |
| KC 1010B 104 EV2 | Biaxial | 0.24 | 1040 | 73 | 10 | 10 | >343 | >343 | 100 | EVA-based |
| KC 1010A 104 AD1 | Biaxial | 0.18 | 1040 | 38 | 10 | 10 | >196 | >196 | 100 | Acrylic-based |
* Braided Cloth™ is a registered trademark of Polymer Processing Laboratories Co., Ltd.
Sun Keep™
- Sun Keep™ is high-strength thin nonwoven cloth.
- It is flexible and fits complicated surfaces well.
- It absorbs waterproofing materials quickly.
Sun Keep™ is a polyester nonwoven cloth reinforced with glass yarn in a 60-degree, three-way grid pattern.
This composite material is characterized by high strength and dimensional stability, both of which are the features of glass fiber, as well as by flexibility and oil-retaining ability, both of which are the features of nonwoven cloth. It is useful for complicated surfaces and rising parts.
This polyester nonwoven cloth has holes, and unlike ordinary nonwoven cloth, it allows waterproofing materials to permeate easily.

Specifications (standard)
| Product code | Manner of weaving | Thickness mm |
Width mm |
Weight g/m2 |
Length m |
Sealing |
|---|---|---|---|---|---|---|
| TNT2016A 102 R | Triaxial | 0.18 | 1020 | 47.0 | 100 | Acrylic-based |
Adhesive processing
In coating film waterproofing work, there are many places in construction sites, including rising parts as well as internal and external corners, where it is difficult to apply reinforcement materials. In order to improve workability for such places, the use of reinforcement materials, one side of which is adhesive, is recommended.
Unlike ordinary adhesive sheets, Nittobo's adhesive sheets are easy to handle, and because they do not use release paper, they do not require disposal of such paper, helping reduce overall cost.
The adhesiveness of adhesive sheets varies with temperature. Adhesive performance also varies with the quality of base material and the condition of its surface. Please pay attention to these points. Nittobo supplies narrow tape-like cut products (for example, 10 cm or 25 cm) according to customers' needs.
Specifications (standard)
| Product code | Manner of weaving | Width mm |
Length m |
Remarks |
|---|---|---|---|---|
| KC 0808B104 AV1 | Biaxial | 1040 | 100 | Adhesive/braided glass cloth |
* The letters “AV” at the end of the product code indicate that the product is adhesive. Its characteristics are the same as those of products without “AV.” AV1 indicates standard products with the standard level of adhesiveness.
AV2 indicates products with a higher level of adhesiveness, which are specially produced according to customers' requests.
* Braided Cloth™ is a registered trademark of Polymer Processing Laboratories Co., Ltd.