DOWSIL™ 758 Silicone Weather Barrier Sealant
Uses:
Strong adhesion strength to:
- Self-adhered window flashing and wraps
- Nonwoven spunbound window flashing and wraps
- Polyethylene wraps
- Polyethylene surfaces
- Polypropylene surfaces
- Common polyolefins
- PVC
- Steel, aluminum and metals
- Fluorinated surfaces
Benefits:
- High adhesion strength
- Long-term silicone durability
- Low-VOC formulation
- Single-component, primerless application
- ±25% movement capability
- Passes 5,000 hr QUV test
Properties
These values are not intended for use in preparing specifications.
Typical Properties
- Adhesion to Yes No Anodized Aluminum, Fluoropolymers, Paint, Vinyl/PVC-U
- Appearance Yes No Opaque
- Chemistry Yes No Neutral
- Color Yes No White
- Cure System Yes No 1-Part Cure
- Cure Type Yes No Neutral Cure
- Durometer - Shore A Yes No 30 Shore A
- Elongation Yes No 800 %
- Flow Yes No NonSag
- Flow/Sag (Slump) Yes No 0.06 mm
- Movement Yes No Medium
- Movement Capability Yes No -25 to 25 %
- Number of Parts Yes No One
- Primerless Adhesion Yes No Primerless
- Resistance Type Yes No UV Resistance
- Special Features Yes No Adhesion to Special Plastics
- Substrate Yes No Non-porous
- Tensile Strength Yes No 200 psi
- Volatile Organic Content Yes No 25 g/liter
- Where Used Yes No Job Site
- Working Time Yes No 15 Minutes

Get primerless adhesion to window flashing and fenestration materials
Innovative DOWSIL™ 758 Silicone Weather Barrier Sealant solves the challenge posed by plastic- and polyolefin-based window flashing and fenestration materials, sticking to the most demanding substrates without need for a primer.

No Safety Data Sheets are available online for this material Please Contact Dow for additional information.
No Safety Data Sheets are available online for this material
Please Contact Dow for additional information.
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No Food Contact Letters are available online for this material
Please Contact Dow for additional information.
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All products must have the same delivery date
All products must be in the same product family
All products must be purchased on the same order
All products must be shipped from the same plant
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