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310ml. Low modulus silicone that gives excellent, unprimed adhesion to both porous and non-porous substrates. Suitable for weather sealing and expansion joints. ISO 11600-25LM. Meets ISI specification 9047 Class 50%.

310ml. Low modulus silicone that gives excellent, unprimed adhesion to both porous and non-porous substrates. Suitable for weather sealing and expansion joints. ISO 11600-25LM. Meets ISI specification 9047 Class 50%.
Average Customer Rating:
4.5 out of 5
4.5
 out of 
5
(4 Reviews) 4
Open Ratings Snapshot
Rating Snapshot (4 reviews)
5 stars
2
4 stars
2
3 stars
0
2 stars
0
1 star
0
4 of 4(100%)reviewers would recommend this product.
Customer Reviews for Dow Corning 791 Weatherproofing Silicone Sealant Brown 310ml
Review 1 for Dow Corning 791 Weatherproofing Silicone Sealant Brown 310ml
Overall Rating: 
5 out of 5
5 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
3 out of 5
3 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
3 out of 5
3 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Great product
19 Sep 2012
By maj3091
, Lancs
"Being a DIY'er, one of the jobs I always hate is using silicone, as it usually ends up everywhere.
I was recommended this product by someone in the trade and to be honest, all my "fears" of using silicone have gone.
It's easy to apply and cures quickly and even with my DIY skills it gives a "professional" (apologies to all the pros out there) finish.
Quite a bit more expensive than other products, but well worth it in my opinion."
Review 2 for Dow Corning 791 Weatherproofing Silicone Sealant Brown 310ml
Overall Rating: 
5 out of 5
5 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
3 out of 5
3 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
3 out of 5
3 out of 5
Sealant
18 Apr 2012
By billn
, Earth
"Can't rate the reliability but if it is like thier sanitary sealant it should be good. Use soapy water to smooth it as it's very sticky."
Review 3 for Dow Corning 791 Weatherproofing Silicone Sealant Brown 310ml
Overall Rating: 
4 out of 5
4 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
4 out of 5
4 out of 5
Would you recommend this product? Yes
Overall Rating: 
4 out of 5
4 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
4 out of 5
4 out of 5
Works well
20 Jul 2012
By Whatisname
, North
"Easy to apply, sticks well, easy to smooth out. Only time (a few years) will tell on reliability but I am happy with it so far."
Review 4 for Dow Corning 791 Weatherproofing Silicone Sealant Brown 310ml
Overall Rating: 
4 out of 5
4 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
4 out of 5
4 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Dow Corning 791 Brown
15 Sep 2011
By DIYHelper
, Lincoln
"Dow Corning 791 Brown does exactly what it says, creates a good weatherproof seal around frames in brickwork without the need to prime or prepare."
2 of 2 people found this review helpful.