DOWSIL 790 Silicone Building Sealant by Glasscorp Architectural

DOWSIL 790 Silicone Building Sealant

Glasscorp Architectural

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Description

Part of the Architectural Building Series, DOWSIL™ 790 is an ultra-low modulus sealant for new and remedial construction joint sealing applications. DOWSIL 790 offers outstanding unprimed adhesion to masonry and is particularly effective for sealing expansion and control joints, precast concrete panel joints, Exterior Insulation and Finish Systems (EIFS) joints, curtainwall joints, mullion joints, stone pavers, and many other construction joints.

When used in accordance with DOWSIL application and testing recommendations, the sealant forms a durable, flexible, watertight bond with many common building materials, including combinations of stone, concrete, masonry, granite, marble, aluminium, painted substrates and glass.

Available in black or grey.

Key Features

Neutral cure
Excellent performance even in building joints that experience extreme movement
Suitable for new and remedial construction
Extension/compression capability of (+100/-50 %)
Excellent weathering properties and resistance to sunlight, rain, snow and temperature extremes
Excellent unprimed adhesion to masonry and concrete substrates
Easy application over a wide temperature range
Meets or exceeds the requirements of Fire Tests of Building Construction and Materials, UL 263 (ASTM E 119)

Scope of Use

Ideal for expansion, construction, perimeter and other joints
Suitable for new construction or remedial applications
Outstanding unprimed adhesion to masonry and is particularly effective for sealing expansion and control joints, precast concrete panel joints, Exterior Insulation and Finish Systems (EIFS) joints, curtainwall joints, mullion joints, stone pavers, and many other construction joints

Limitations on Use

Must be used in accordance with technical literature and maintenance guidelines
Due to the unique chemistry of DOWSIL 790, any alcohols such as isopropyl alcohol (IPA) should be allowed to fully flash or dry before applying sealant to avoid cure inhibition
For more information on compatibility with other products and specialist advice, please contact Glasscorp Architectural directly
Customers should independently determine the suitability of this product for their specific purpose prior to use

Statement of Building Code Compliance

DOWSIL™ sealants may contribute to compliance with the following code clauses when correctly applied.

B2 (Durability), B2.3.1(a). The durability of silicone is well established in NZ based on in-service use.
C2 – C6 (Protection from Fire), applicable performance criteria. Performance based on fire testing.
E2 (External Moisture) & E3 (Internal Moisture), applicable performance criteria. Silicone when applied seals joints and allowed to cure will resist water penetration.
F2 (Hazardous Building Materials), F2.3.1. Silicone is not considered hazardous, and does not emit harmful gases.