wetcast application
- Thread starter danielt
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yes mate by rights you throw into a butter coat,same principle as dry dash,exept yove got a bit of gear in with the stone.
Thanx for clearing that up.
Got my base coat on (powerwall), and plan to finish it in the next few days but something i hadnt though of was controling the suction before puting on my top coat.
I know with sand and cement a wet down would do. Could i do the same with this or use an external waterproof pva.
thanx
Got my base coat on (powerwall), and plan to finish it in the next few days but something i hadnt though of was controling the suction before puting on my top coat.
I know with sand and cement a wet down would do. Could i do the same with this or use an external waterproof pva.
thanx
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The last rough casting job I did I used a 6-1-1 mix for the scratch, and gave it a bit of a wetting before putting on my 6-1-1 mix butter coat then threw the r/cast on to that. You don't want to kill the suction for r/casting. Have a look at my photos on my album.. 
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is it ok to use waterproofer in the scratchcoat while roughcasting roy? or will that kill the suction to much?The last rough casting job I did I used a 6-1-1 mix for the scratch, and gave it a bit of a wetting before putting on my 6-1-1 mix butter coat then threw the r/cast on to that. You don't want to kill the suction for r/casting. Have a look at my photos on my album..
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I've never tried it with w/proofer steve and have used same mix for scratch as buttercoat, and 4-2-1-1 for the wet dash mix... It might be ok with w/proofer, maybe one of the lads has tried it and will let us know..is it ok to use waterproofer in the scratchcoat while roughcasting roy? or will that kill the suction to much?The last rough casting job I did I used a 6-1-1 mix for the scratch, and gave it a bit of a wetting before putting on my 6-1-1 mix butter coat then threw the r/cast on to that. You don't want to kill the suction for r/casting. Have a look at my photos on my album..
4-2-1-1 is that sand-cement-lime- aggregate?I've never tried it with w/proofer steve and have used same mix for scratch as buttercoat, and 4-2-1-1 for the wet dash mix... It might be ok with w/proofer, maybe one of the lads has tried it and will let us know..is it ok to use waterproofer in the scratchcoat while roughcasting roy? or will that kill the suction to much?The last rough casting job I did I used a 6-1-1 mix for the scratch, and gave it a bit of a wetting before putting on my 6-1-1 mix butter coat then threw the r/cast on to that. You don't want to kill the suction for r/casting. Have a look at my photos on my album..
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stones-sand-cement-lime, steve4-2-1-1 is that sand-cement-lime- aggregate?I've never tried it with w/proofer steve and have used same mix for scratch as buttercoat, and 4-2-1-1 for the wet dash mix... It might be ok with w/proofer, maybe one of the lads has tried it and will let us know..is it ok to use waterproofer in the scratchcoat while roughcasting roy? or will that kill the suction to much?The last rough casting job I did I used a 6-1-1 mix for the scratch, and gave it a bit of a wetting before putting on my 6-1-1 mix butter coat then threw the r/cast on to that. You don't want to kill the suction for r/casting. Have a look at my photos on my album..
I sometimes put a wee smidgen of sbr into the mix if I have any in the van but thats just my preference mucka...I deleted the reply here about dry dash, to avoid confusion with wet dash!!!
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Hi rc, steve was on about if you could put w/proofer in the scratch for wet dashing but I myself have never used it in the scratch (because of killing the suction) what do you think mucka?
Hi rc, steve was on about if you could put w/proofer in the scratch for wet dashing but I myself have never used it in the scratch (because of killing the suction) what do you think mucka?
Your right Roy,, ""NO waterproofer in the scratchcoat"" for WET DASH. You "need the suction" to absorb/hold the wet dash, without it slumping.
cheers i done it it training years ago but have never done it for real its becoming a distant memory now, all i can remember is throwing the wet dash on the walls i cant remember the mix ratios
no need to wet down if its a poly scratch,we dash em dry daily!
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