Using Liquid Sand

[outriggers]

I will be refinish one of my 1980 Triumph cars and changing the color. There are areas that it is impossible to sand such as behind the grill, over the fender wells in the trunk etc, but I would like to spray some color over them. Most of them are rough finished with the original color now. The OEM paint is a 2 part acrylic/hardner type.

Will using the liquid sand sold in hardware stores leave enough of a porous finish to hold paint

[Len]

I will be refinish one of my 1980 Triumph cars and changing the color. There are areas that it is impossible to sand such as behind the grill, over the fender wells in the trunk etc, but I would like to spray some color over them. Most of them are rough finished with the original color now. The OEM paint is a 2 part acrylic/hardner type.

Will using the liquid sand sold in hardware stores leave enough of a porous finish to hold paint

It's difficult to say if that product will do the job but I can tell you that it could be a lot more difficult to tell if it's scuffed properly and more difficult to clean these interior surfaces after you use a liquid sandpaper. I would use a scuff pad for that job.


http://autobodystore.net/Merchant2/graphics/00000001/3m7448.jpg
LINK (http://autobodystore.net/Merchant2/merchant.mvc?Screen=PROD&Product_Code=3M7448&Category_Code=SM)

[Phil V]

acid etch primer is an option also. Make sure it is clean of oil/silicone contaminants and dirt etc then just spray on the acid etch primer. no scuffing, no sanding, just spray the acid etch and topcoat with your regular paint. I have done similar jobs many many times with short or long term negative effects.

[200horse]

acid etch primer is an option also. Make sure it is clean of oil/silicone contaminants and dirt etc then just spray on the acid etch primer. no scuffing, no sanding, just spray the acid etch and topcoat with your regular paint. I have done similar jobs many many times with short or long term negative effects.

isnt etch prime made to etch into bare steel ? or am I wrong

[Phil V]

Its the acid in the etch primer that eats into the thats beneficial. That same acid eats into existing paint as well.