High-performance neutral-cure silicone sealants (pH 7.0) from Toshiba, JIS-certified, delivered in Japan Original Packaging, and compliant with F4 Star Environmental Certification. Designed for both indoor and outdoor sealing applications, these products provide excellent adhesion, flexibility, and durability while remaining chemically neutral and non-corrosive. Ideal for kitchens, bathrooms, doors, windows, and construction projects.

Toshiba GE 381 (Tosseal 381) – Enhanced Waterproof
Certification: JIS-certified, F4 Star Environmental Certification
Packaging: Japan Original Packaging, 333 mL cartridges or larger tubes
Type: Neutral-cure, high-modulus silicone sealant, single-component, non-acidic, pH 7.0
Application: Outdoor and construction applications, including:
● Sealing doors, windows, balconies, sunrooms
● Baseboards and joints between building materials
Properties:
● Enhanced waterproof performance, excellent for outdoor exposure
● UV-resistant, anti-aging, and corrosion-resistant
● Strong adhesion to glass, metal, mosaics, and stone
Key Features:
● Cures at room temperature via moisture in the air
● Maintains strong bond and flexibility in outdoor conditions
● Neutral pH (7.0) prevents metal corrosion
● Specially formulated for superior waterproofing in exterior environments
Available in color Black