DOWSIL™ 888 Silicone Joint Sealant

什么 DOWSIL™ 888 Silicone Joint Sealant?

One-part, non-sag silicone material that cures to a low-modulus silicone rubber upon exposure to atmospheric moisture. Can be applied over a wide temperature range.

用途

New construction, repair or remedial applications

优势

Can be extruded from -20 to 120°F.
May be used in joints that are not uniform in width.
Movement capability 100% extension and 50% compression.
Low modulus.
Weather and UV resistant.
Fuel resistant-short term exposure. Refer to Dow form number 62-207 for more information.
One component, cold applied, ready-to-use as supplied; dispensed directly from the bulk container into the joint by hand or with an air-powered pump.
Unprimed adhesion – primer is not required for bonding to Portland cement concrete. For optimum adhesion, the surface must be clean, dry and frost-free.
Cure time – typically, the sealant will have a skin-over time of one hour or less at standard conditions.

性能

app.properties.Title
Application Temperature Range	-29 to 49 °C
Primerless Adhesion	Primerless
Resistance Type	Fuel Resistance, Jet Fuel Resistance

product.use.formulating.properties.Title
Cure System	1-Part Cure
Full Adhesion Time	14 to 21 Days
Room Temperature Cure - Days	7 to 14 Days
Tack-free Time (50% RH)	60 minutes
Where Used	Job Site

typical.properties.Title
Adhesion to	Concrete, Masonry
Appearance	Opaque
Chemistry	Neutral
Color	Grey
Durometer - Shore A	15
Modulus @ 150% Elongation, maximum	28 psi
Movement	Medium
Resistance Type	Ozone Resistance, Thermal, UV Cure, Water
Shelf Life	360 Days
Specific Gravity @ 25°C	1.48
Substrate	Porous

DOWSIL™ 888 Silicone Joint Sealant

什么 DOWSIL™ 888 Silicone Joint Sealant?

用途

优势

性能

app.properties.Title

product.use.formulating.properties.Title

typical.properties.Title

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