Dow 956 SMS Building Sealant

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Description for Dow 956 SMS Building Sealant

Good working and tooling time; all temperature gunnability; medium modulus; excellent weatherability; compatible with open and closed cell polyurethane.

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Application Type	Sealant
1 Part or 2 Part	1-Part
Material Form	Paste
Manufacturer	Dow
Chemistry	Silicone
Cure Method	Moisture
Cure Time (min)	10,080 to 20,160

Best Practices for Dow 956 SMS Building Sealant

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Technical Data for Dow 956 SMS Building Sealant

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Overview

Application Type
- Sealant
1 Part or 2 Part
- 1-Part
Material Form
- Paste
Chemistry
- Silicone
Cure Method
- Moisture / Condensation Cure - Moisture

Specifications

Cure Specs

Cure Time (min)	10,080 to 20,160

Hardness

Shore A Hardness	35
Elongation (%)	12
Modulus (psi)	Medium

Best Practices for Dow 956 SMS Building Sealant

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Comparable Materials for Dow 956 SMS Building Sealant

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Spec Engine^® Results
- 737 Neutral Cure Sealant(Dow)
  One-part, RTV silicone sealant, low odor, neutral cure, will not corrode substrates, good adhesion, cures quickly to a tough rubbery solid.
- Loctite SI 5900(Henkel)
  An excellent adhesion profile to an outstanding wide variety of plastic substrates, as well as glass, ceramics and metals.
- Dowsil 730 FS Solvent Resistant Sealant(Dow)
  One-component fluorosilicone adhesive/sealant, Cures at room temperature, Non-sag, paste consistency, For assembling and/or repairing of fuel systems and tanks.
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