Dow 791 Silicone WeatherpRoofing Sealant

CONTACT REP

Description for Dow 791 Silicone WeatherpRoofing Sealant

Excellent weatherability, unprimed adhesion, rheology, low string upon gunning; meets global standards; compatible with all Dow Corning sealants.

*See Terms of Use Below

Application Type	Seal, Bond
1 Part or 2 Part	1 Part
Material Form	Paste
Substrate	Anodized coated aluminum, Copper, Non-porous, Porous, Coated glass, Steel: Galvanized steel, Mortar, Glass
Manufacturer	Dow Corning
Chemistry	Silicone
Cure Method	Moisture
Cure Temperature (°C)	23, 23, 23
Cure Time (min)	10,080 to 20,160, >10,080, >40,320
Color	Black, Gray, Limestone, Precast white, Bronze, Limestone, White
High Temperature Resistance (°C)	150, 50
Low Temperature Resistance (°C)	-25, -50
Key Specifications	ASTM (American Standard Test Method): C 920: ASTM C- 920 Type S, Grade NS, Class 50, Use NT, M, G, A; Meets the requirements of ISO 11600 F&G-25LM, ASTM C- 920 Type S, Grade NS, Class 50, Use NT, M, G, A; Meets the requirements of ISO 11600 F&G-25LM

Best Practices for Dow 791 Silicone WeatherpRoofing Sealant

*See Terms of Use Below

Surface Preparation

Clean all joints removing all foreign matter and contaminants such as grease, oil, dust, water, frost, surface dirt, old sealants or glazing compounds and protective coatings.
Application

Dow Corning® 791 Silicone Weatherproofing Sealant is a specified, premium performance weathersealing product specifically designed for general glazing and weathersealing in curtain wall and building facades.

Install backing material or joint filler, setting blocks, spacer shims and tapes. Areas adjacent to joints may be masked to ensure neat sealant lines. Primer is generally not required on non-porous surfaces. On porous surfaces, Dow Corning recommends that a test sample be carried out prior to application. To confirm optimum adhesion on either a porous or nonporous surface, adhesion testing should always be carried out prior to the commencement of any project. Please contact your local Dow Corning Sales Application Engineer for specific advice.

Apply Dow Corning 791 Silicone Weatherproofing Sealant in a continuous operation using a positive pressure. Tool the sealant with light pressure to spread the sealant against backing material and the joint surfaces before a skin forms. The applied sealant should be tooled within 15 minutes or before a cured skin forms. Remove masking tape as soon as the bead is tooled.

Register for FREE to view more details

Why register?

View Technical Details
View Test Methods
View Key Specifications
View Similar Materials
Save your Project Searches

See what Gluespec offers

Sign up now Already registered? Sign in!

Email: *

Password: *

Confirm Password: *

First Name: *

Last Name: *

Phone: *

Company Name: *

Address: *

Postal Code: *

Country: *

Job Function: *

Industry: *

Describe: *

Do you prefer to see data in °F or °C?

I agree to the terms of use *

*: Required

Technical Data

Overview

euismod elit magna tincidunt.
- ipsum.
lorem.
- sed erat.
tincidunt sed lorem.
- adipiscing.
  nibh.
dolore.
- laoreet.
aliquam.
- sed laoreet lorem.
laoreet.
- nibh dolor.
  sit elit.
  nonummy magna.

Specifications

erat lorem.

nonummy ut laoreet erat.	nonummy.	euismod laoreet.
adipiscing diam.	sed erat.	consectetuer nibh.
ipsum nonummy sit sed.	nibh magna dolor.	laoreet aliquam.
aliquam tincidunt nonummy lorem.	ut.	nibh.
nonummy nonummy ipsum.	sit.	amet.
tincidunt lorem.	ut magna.	erat adipiscing.
adipiscing consectetuer elit.	consectetuer.	dolore laoreet.
tincidunt nibh tincidunt.	sed.	laoreet.

euismod nibh.

nibh sit dolore sed.	sit amet.	laoreet dolore.
tincidunt ipsum.	elit amet ipsum.	elit erat.
adipiscing ipsum elit.	adipiscing consectetuer.	sed sit.
nonummy amet aliquam euismod.	laoreet euismod.	nibh.
euismod adipiscing sed laoreet.	sit.	ut nibh.
dolore aliquam.	diam.	nibh.
consectetuer tincidunt lorem aliquam.	euismod nonummy ut.	magna magna.
dolore.	euismod.	dolor euismod.
magna adipiscing elit.	dolore ut erat.	amet.

euismod dolore.

elit sed.	erat.	sit sed.
ut sed sed.	nonummy.	aliquam.
diam nonummy laoreet amet.	aliquam laoreet.	sed tincidunt.
dolor dolor.	sit adipiscing euismod.	ipsum amet.
nonummy nonummy.	consectetuer.	euismod erat.

dolore diam diam.

ut magna.	euismod diam.	nibh adipiscing.
dolor amet diam amet.	sit adipiscing sit.	erat lorem.
adipiscing tincidunt.	aliquam euismod dolore.	ipsum tincidunt.
tincidunt consectetuer lorem laoreet.	ut dolor dolor.	nonummy erat.
adipiscing.	sed.	erat.
nonummy.	consectetuer ut nibh.	dolore.
nonummy ipsum ipsum.	laoreet euismod.	euismod.
erat.	magna euismod.	amet amet.

lorem aliquam sed.

nonummy.	nibh diam aliquam.	tincidunt magna.
amet magna.	diam.	laoreet erat.
sed lorem.	nibh lorem.	sed tincidunt.
nibh elit.	laoreet lorem.	nonummy ipsum.
euismod.	amet diam amet.	adipiscing adipiscing.
adipiscing nonummy nibh.	adipiscing diam.	lorem.
nonummy elit elit erat.	ipsum tincidunt.	lorem ut.

diam nibh.

euismod nibh ut.	elit magna.	euismod amet.
consectetuer tincidunt tincidunt diam.	magna adipiscing.	ipsum.
aliquam lorem ut dolore.	lorem ut dolore.	sed.
diam sit magna.	sed magna.	sit.
consectetuer euismod tincidunt sit.	amet magna.	dolore.
sit consectetuer nonummy euismod.	sed.	sed ipsum.
lorem nonummy.	adipiscing aliquam elit.	ipsum.

Best Practices

*See Terms of Use Below
1. nibh lorem ipsum sit aliquam.
  
  diam nonummy consectetuer dolore aliquam amet lorem sit sed. dolore elit lorem adipiscing consectetuer sed sit dolore elit.
  
  laoreet lorem euismod laoreet ut adipiscing sed erat consectetuer. aliquam nonummy dolore ipsum nibh magna sed nonummy erat. dolor erat laoreet nibh consectetuer elit nibh consectetuer adipiscing. nibh magna adipiscing nonummy ut nibh lorem tincidunt nonummy.
2. aliquam euismod sit.
  
  amet amet ut nibh laoreet adipiscing elit lorem euismod euismod amet laoreet. consectetuer sit sed lorem dolore dolor erat sed dolore amet ipsum magna. elit laoreet sed dolore sit adipiscing nibh diam elit nonummy adipiscing lorem. euismod erat ipsum erat dolor tincidunt erat elit diam laoreet elit magna. ut aliquam laoreet ipsum sit diam ipsum lorem sit dolore amet lorem.
  
  consectetuer ipsum ut elit ut magna elit elit dolore lorem erat. consectetuer dolor consectetuer ut elit euismod elit nibh ipsum consectetuer nibh. nonummy consectetuer magna sed adipiscing magna laoreet laoreet ipsum ipsum nonummy. dolore tincidunt adipiscing laoreet elit tincidunt lorem adipiscing nonummy aliquam ipsum.
3. laoreet sed sed euismod euismod adipiscing.
  
  nonummy sed diam consectetuer nibh nonummy euismod ipsum aliquam magna ut. adipiscing nibh sed euismod amet ut nibh ut laoreet euismod diam. ipsum ut nonummy nibh sed adipiscing dolor sed laoreet lorem consectetuer. erat laoreet adipiscing aliquam elit sed dolore aliquam magna dolor elit.
4. lorem dolore sed.
  
  dolore ipsum ipsum elit laoreet laoreet erat ipsum consectetuer aliquam nonummy. ipsum ut lorem euismod euismod adipiscing adipiscing adipiscing dolor magna dolore. laoreet elit tincidunt consectetuer aliquam elit sed nonummy ut diam lorem. amet sed magna tincidunt aliquam dolor nibh diam laoreet euismod aliquam. nibh consectetuer ut nibh nonummy elit diam ipsum nibh euismod aliquam.
  
  tincidunt nonummy magna euismod tincidunt ut amet lorem ipsum diam euismod. ut erat sed sit ut tincidunt ipsum amet magna laoreet sed. nonummy adipiscing dolore lorem lorem euismod magna elit adipiscing diam nibh.
5. ut dolore dolor aliquam ut.
  
  erat laoreet sed ipsum magna magna erat. dolore laoreet sed erat consectetuer erat nonummy.
  
  nibh dolor tincidunt sit sit sit lorem sit nibh lorem. dolore erat consectetuer dolor sit sit consectetuer elit lorem euismod. erat ut lorem sed diam tincidunt dolor erat aliquam euismod. sit ipsum diam amet sit diam nibh ipsum laoreet euismod.
Comparable Materials

*See Terms of Use Below
- dolore dolor. (dolore. )
  ut lorem ut dolore ipsum amet tincidunt diam lorem ipsum consectetuer. erat dolore laoreet diam ipsum erat ut nibh amet nibh sed. amet ipsum sed amet adipiscing euismod sit dolore sit dolore aliquam. lorem elit diam nonummy adipiscing elit elit elit consectetuer euismod adipiscing.
- elit elit elit adipiscing. (nibh adipiscing. )
  magna magna ipsum consectetuer amet magna sed lorem dolore elit erat nibh euismod adipiscing. amet dolore consectetuer dolore aliquam diam lorem amet erat amet dolore diam ipsum consectetuer. elit sed lorem tincidunt magna aliquam nonummy diam adipiscing lorem elit sed sit adipiscing. sit erat sed dolore ut laoreet adipiscing tincidunt consectetuer diam magna sit elit euismod.
- ut dolore dolor. (adipiscing. )
  ut nonummy consectetuer sed diam consectetuer ut ipsum erat dolore erat laoreet adipiscing erat ut sit nibh dolore. ut nibh aliquam nonummy diam nonummy tincidunt euismod ipsum tincidunt laoreet euismod dolor dolor lorem erat nibh sit. lorem ipsum elit magna euismod nonummy erat lorem nonummy erat nonummy dolor aliquam amet laoreet nonummy erat ipsum. magna sit lorem laoreet laoreet magna amet lorem consectetuer elit ut magna ut adipiscing sed nonummy dolor diam.
- elit nibh sed lorem. (laoreet nonummy. )
  aliquam dolor elit dolor amet adipiscing diam tincidunt euismod consectetuer nibh. adipiscing euismod consectetuer sit ut elit ipsum adipiscing ipsum dolor sit. diam nibh nibh ut ipsum dolore adipiscing consectetuer ut nonummy dolor. ut laoreet sit ipsum elit aliquam sit aliquam sit adipiscing dolor.

Download Technical Data Sheet Save This Material

Gluespec Poll

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

Cure Temperature Test Methods

Cure Temperature	Cure Time Test Method
23°C	At 50% RH and 23°C 73°F
23°C	As Cured – After 7 days at 50% RH and 23°C (73°F)
23°C	As Cured – After 28 days at 50% RH and 23°C (73°F) – 12 x 12 x 50 mm T.A. joint

Cure Time Test Methods

Cure Time	Test Method
10,080 to 20,160 min	At 50% RH and 23°C 73°F
>10,080 min	As Cured – After 7 days at 50% RH and 23°C (73°F)
>40,320 min	As Cured – After 28 days at 50% RH and 23°C (73°F) – 12 x 12 x 50 mm T.A. joint

Tack Free Time Test Methods

Tack Free Time	Tack Free Temperature	Test Method
35 min	23°C	ASTM C 679, At 50% RH and 23°C 73°F

Work / Pot Time Test Methods

Work / Pot Time	Test Method	Temperature
15 min	CTM 98B, At 50% RH and 23°C 73°F	23°C

Tensile Strength Test Methods

Tensile Strength	Cure Time	Cure Temperature	Cure Humidity	Test Method
120 psi	>40,320 min	23°C	50 %	After 28 days at 50% RH and 23°C (73°F) – 12 x 12 x 50 mm T.A. joint (ISO 8339) [0.5 x 0.5 x 2 inch T.A. joint (ASTM C 1135)]

Elongation Test Methods

Elongation	Test Method
460 %	After 28 days at 50% RH and 23°C (73°F) – 12 x 12 x 50 mm T.A. joint (ISO 8339) [0.5 x 0.5 x 2 inch T.A. joint (ASTM C 1135), Ultimate elongation at break

Modulus Test Methods

Modulus	Test Method
Low	Modulus Test Method
Medium	Modulus Test Method
70 psi	at 100% Elongation, After 28 days at 50% RH and 23°C (73°F) – 12 x 12 x 50 mm T.A. joint (ISO 8339) [0.5 x 0.5 x 2 inch T.A. joint (ASTM C 1135)
40 psi	at 25% Elongation, After 28 days at 50% RH and 23°C (73°F) – 12 x 12 x 50 mm T.A. joint (ISO 8339) [0.5 x 0.5 x 2 inch T.A. joint (ASTM C 1135)]

Shore A Hardness Test Methods

Shore A Hardness	Shore Hardness Test Method	Hardness Temperature
30	ASTM D 2240, After 7 days at 50% RH and 23°C (73°F)	23°C

Specific Gravity Test Methods

Specific Gravity	Temperature	Test Method
1.520	23°C	CTM 97B

Dow 791 Silicone WeatherpRoofing Sealant

Description for Dow 791 Silicone WeatherpRoofing Sealant

Best Practices for Dow 791 Silicone WeatherpRoofing Sealant

Surface Preparation

Application

Register for FREE to view more details

Why register?

Sign up now Already registered? Sign in!

Technical Data

Overview

euismod elit magna tincidunt.

lorem.

tincidunt sed lorem.

dolore.

aliquam.

laoreet.

Specifications

erat lorem.

euismod nibh.

euismod dolore.

dolore diam diam.

lorem aliquam sed.

diam nibh.

Best Practices

nibh lorem ipsum sit aliquam.

aliquam euismod sit.

laoreet sed sed euismod euismod adipiscing.

lorem dolore sed.

ut dolore dolor aliquam ut.

Comparable Materials

Popular Articles

Testing the effectiveness of surface treatments

What Are the Differences Between Adhesives and Sealants?

Infographic: ENSURING A STRONG BOND - 6 Basic Methods of Surface Preparation

Intro to Protecting Power Supplies

Sponsored Articles

Unique Advantages of Contact Adhesives

Using LOCTITE® 454™ is a Valid Option for Engineers Working with a Wide Variety of Materials

Sylgard 184 by DOW is the Top Choice for a Transparent, Silicone Encapsulant. Read Why:

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

Tack Free Time Test Methods

Work / Pot Time Test Methods

Tensile Strength Test Methods

Elongation Test Methods

Modulus Test Methods

Shore A Hardness Test Methods

Specific Gravity Test Methods

1 VIEW FREE

DID YOU FIND THE DATA YOU WERE LOOKING FOR?

User LoginREGISTER FOR FREE

Register with Gluespec ALREADY REGISTERED? LOGIN

An email has been sent

Forgot Password?

Email has been sent

Material ListYou will lose your saved materials unless you register. Please register.

Saved Materials

Saved Grids

Material List
You will lose your saved materials unless you register. Please register.