We're remodeling and doing a full chip out before plaster. On bond coats. I've been warned to not let a contractor use a "home brew," or the SGM product because this does not have a warranty and would ruin the manufacturer's warranty of the plaster. Worse, it can cause delamination. We are doing full chipout which shouldn't require a bond coat but what one contractor told me is they use a bond coat because even a full chipout will have bits of plaster left. What are the acceptable bond coats allowed so that the plaster warranty is not compromised, or worse so delamination does not occur?
Bond Coats
- Thread starter cpp80
- Start date
- Jul 21, 2013
- 52,856
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
@onBalance what is your view about bond coats and products with a chip out?
A full chip out does not generally need or require a bond coat to be applied. However, I see no harm in doing so, and in fact, may improve the bonding of the new plaster coat.
I have never heard of a bond coat that would violate a warranty of the plaster. I question that, so I would like to see that in writing before commenting about that.
And I suppose there may be a couple of bond coats that aren't as good as others. But for the most part, bond coats generally help and improve bonding, but are not necessary with a full chip. So I like the contractor that recommends a bond coat.
I have never heard of a bond coat that would violate a warranty of the plaster. I question that, so I would like to see that in writing before commenting about that.
And I suppose there may be a couple of bond coats that aren't as good as others. But for the most part, bond coats generally help and improve bonding, but are not necessary with a full chip. So I like the contractor that recommends a bond coat.
MAPR-Austin
In The Industry
I've always been wary of bond coats. If it is mixed incorrectly, applied incorrectly, sits too long or not long enough, etc - It just seems like it adds more potential avenues for failure. In Texas you won't have to worry about freeze/thaw, which is a plus.
That said, if the prep is done right, and the bond coat is done right, it should be just fine.
That said, if the prep is done right, and the bond coat is done right, it should be just fine.
- May 23, 2015
- 24,443
- Pool Size
- 16000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
More important than a bond coat - make sure it is in a written statement that the old plaster will be chipped out using ONLY flat bladed chisels, not pointed chisels.
@AQUA~HOLICS has posted some very good images of chipouts done right.
@AQUA~HOLICS has posted some very good images of chipouts done right.
