Pva release agent help!

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Pva release agent help!

Author	Message
carbon man	carbon man posted 10 Years Ago HOT Topic Details
Group: Awaiting Activation Posts: 86, Visits: 1.2K	When applying the gloss pva release agent it always drys with tiny air bubbles in which are raised up and show up in the new mould, then I'm forever sanding the new mould. Iv tried using a foam bush, iv tried wiping on with tissue, and iv tried using a small air spray gun that attaches to a little air canister. But I found when spraying the pva on it sometimes beaded which wad also no good. Hope you can help. Cheers
	Reply Like 2
carbonfibreworks	carbonfibreworks posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 292, Visits: 4.5K	Hi Carbon Man Thoroughly de grease the part then use a spray gun and build the PVA up with some light mist coats , I am not a fan of PVA it has its applications . Chris
	Reply Like 3
Hanaldo	Hanaldo posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 2.5K, Visits: 28K	You did too heavy a coat. Have had this issue before as well. You need to apply it a bit thinner, and allow it to completely dry between coats. Also make sure it isn't too hot when you are spraying.
	Reply Like 3
carbon man	carbon man posted 10 Years Ago HOT Post Details
Group: Awaiting Activation Posts: 86, Visits: 1.2K	Thanks for the reply. Iv read up about using hairspray! I tried this method and wow! Perfect results!
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Blackrat	Blackrat posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 20, Visits: 85	hairspray and PVA ? please do tell ....
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Hanaldo	Hanaldo posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 2.5K, Visits: 28K	Hairspray does the same thing as PVA, so it can be used instead of. It's more expensive though, so seems a bit pointless to me unless you're in a grind.
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carbon man	carbon man posted 10 Years Ago HOT Post Details
Group: Awaiting Activation Posts: 86, Visits: 1.2K	Yeah used instead of pva. As I didn't have a great spray gun. And all my parts are small so cost of hairspray isn't a problem. New mould is like glass
	Reply Like 2
Hanaldo	Hanaldo posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 2.5K, Visits: 28K	Nice. Always good when things work out. Photos? I enjoy a nice glossy mould
	Reply Like 3
fastboats	fastboats posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 9, Visits: 94	Nice hairspray trick. How many layers did you use and any other tricks you can tell on using it vs. Pva? Thanks
	Reply Like 3