Dow NS Parking Structure Sealant

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Description for Dow NS Parking Structure Sealant

Good weatherability; resilient; long life reliability; unprimed adhesion; seals irregular surfaces; non-slump.

Application Type	Bond, Repair, Seal
1 Part or 2 Part	1 Part
Material Form	Paste
Substrate	Non-porous, Plastics, Steel, Cement block, Portland cement concrete, Granite, Concrete, Mortar, Paving stone
Manufacturer	Dow
Chemistry	Low-modulus silicone
Cure Method	Moisture
Cure Temperature (°C)	20 to 25, 25, 25
Cure Time (min)	20,160 to 30,240, >10,080, >30,240, 20,160 to 30,240
Viscosity (cPs)	Non-sag
Color	Brick, Gray
High Temperature Resistance (°C)	149
Low Temperature Resistance (°C)	-45
Key Specifications	ASTM (American Standard Test Method): C 920: ASTM C 920, Type S, Grade NS, Class 25, Use T, A, M and O

Best Practices for Dow NS Parking Structure Sealant

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Surface Preparation

surface must be clean, dry and frost-free at the time of sealant application.
Application

Dow Corning NS Parking Structure Sealant is not a self-leveling sealant. It must be tooled to ensure good contact and adhesion as well as to control sealant depth and provide a recessed surface. Several devices can be used for tooling. Dow Corning NS Parking Structure Sealant is part of a system that must include the proper backer rod and proper installation procedures. The backer rod must be expanded, closed cell polyethylene foam. Where irregularly shaped joints exist, backer rod that is open-cell with an impervious skin is acceptable to ensure a tight fit against the irregular joint wall faces. Several other back-up materials (paper, fibrous ropes and open-cell foams) are available, but have proven to be unacceptable. There are several manufacturers of closed-cell polyethylene foam and any may be used. When using Dow Corning NS Parking Structure Sealant with other Dow Corning products carrying the Parking Structure Sealant name, please note that these materials are all compatible with one another in either the cured or uncured state, may come in contact with one another, and will bond to one another provided no debris or other contaminants interfere with the bond.

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Technical Data

Overview

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Specifications

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Best Practices

*See Terms of Use Below
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Comparable Materials

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Cure Temperature Test Methods

Cure Temperature	Cure Time Test Method
20 to 25°C
25°C	As Cured – After 7 days at 25°C (77°F) and 50 percent RH
25°C	As Cured – After 21 days at 25°C (77°F) and 50 percent RH

Cure Time Test Methods

Cure Time	Test Method
20,160 to 30,240 min
>10,080 min	As Cured – After 7 days at 25°C (77°F) and 50 percent RH
>30,240 min	As Cured – After 21 days at 25°C (77°F) and 50 percent RH
20,160 to 30,240 min

Tensile Strength Test Methods

Tensile Strength	Cure Time	Cure Temperature	Cure Humidity	Test Method
100 psi	10,080 min	25°C	50 (%) RH	ASTM D 412

Peel Strength Test Methods

Peel Strength	Cure Time	Cure Temperature	Cure Humidity	Substrate	Test Method
20 (ppi)	10,080 min	25°C	50 (%) RH	Concrete	ASTM C 794

Elongation Test Methods

Elongation	Test Method
1,600 %	ASTM D 412, After 7 days at 25°C (77°F) and 50 percent RH
>400 %	ASTM C 1135, After 21 days at 25°C (77°F) and 50 percent RH, Ultimate Elongation

Modulus Test Methods

Modulus	Test Method
Low	Modulus Test Method
40 psi	ASTM D 412, at 150% elongation, After 7 days at 25°C (77°F) and 50 percent RH
15 psi	ASTM C 1135, at 25% elongation, After 21 days at 25°C (77°F) and 50 percent RH
20 psi	ASTM C 1135, at 50% elongation, After 21 days at 25°C (77°F) and 50 percent RH

Shore A Hardness Test Methods

Shore A Hardness	Shore Hardness Test Method	Hardness Temperature
15	ASTM C 661, After 7 days at 25°C (77°F) and 50 percent RH	25°C

Dow NS Parking Structure Sealant

Description for Dow NS Parking Structure Sealant

Best Practices for Dow NS Parking Structure Sealant

Surface Preparation

Application

Register for FREE to view more details

Why register?

Sign up now Already registered? Sign in!

Technical Data

Overview

aliquam tincidunt dolore.

adipiscing.

laoreet.

nibh euismod tincidunt.

Specifications

amet.

sed aliquam consectetuer amet.

dolor.

diam.

Best Practices

aliquam erat nonummy dolor amet.

dolor lorem diam laoreet laoreet.

erat magna sit euismod.

erat elit consectetuer sit.

Comparable Materials

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Gluespec Poll

What level of expertise do you have in specialty chemicals like adhesives, sealants, conformal coatings, etc.?

Cure Temperature Test Methods

Cure Time Test Methods

Tensile Strength Test Methods

Peel Strength Test Methods

Elongation Test Methods

Modulus Test Methods

Shore A Hardness Test Methods

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