My New goto primer - Chemcraft

[Tomciopaluch]

Well picked up today 5gal from Abbot NJ for $157 not bad friend of mine loves it and swears by it

 

[Tomciopaluch]

Bin Primer is a generic primer for house paint and is a generic soft primer. If you are spraying professionally and want compatibility with good top coats its best to stick to products made by the same company. As an example Sherwin Williams makes a couple of excellent primers made to to be used with their commerical Kem Aqua line. Chemcraft, Milesi, are the same, as are most higher end companies. Not all primers are created equal and the cost is usually indicative of the quality. Its very hard to discuss paint issues with a company rep when you are using an off brand primer. Not all compatibility issues show up immediately that's why companies have disclaimers if you read the PDS sheets. What do you recommend from MLC ,Ilva , Milesi or. Chemcraft as a stain blocker?

 

[tofu]

How long does BIN survive in the can? I love the stuff, but I'll not sure I can go through 5 gallons in a few months. I've been buying quarts, but it's a lot more expensive that way

I roll it on anything, sand, then shoot it with scuff-x.

 

[Packard]

My go to primer is BIN.  Sprayed straight out of the can, no thinning with a 1.3mm tip and get the results you desire:  Quick drying, Sands with minimal effort to a powder, is readily available most anywhere and is more than 1/2 the cost.  Have you tried it?

BIN has worked very well for me sprayed through an airless sprayer.  I get the same results as [member=3220]Jim Kirkpatrick[/member].  I have yet to try it through my Q4.

I like BIN for MDF because it does not raise the grain on the machined edges.  I did run into an issue with PPG's Breakthrough 250 VOC, as the finish crazed over the BIN.  The PPG dealer said Breakthrough does not like to go over any shellac and will craze.  He suggested no primer.  I tried it.  It did not raise the grain and it had good adhesion.

I have since switched to Sherwin Williams Emerald for a top coat and I have been using 1-2-3 as a primer.  Good results but it raises the grain and I have to sand the edges of MDF and apply two coats.

 

[Wood_Slice]

Seems a bit pricey for a primer. I usually wait for annual or some worth of a sale in Sherwin-Williams and get their Multi-Purpose primer. I forget the normal price but when I purchased it on sale it was something like 50% off around $20-25 or so per gallon. I Bought 2 gallons and was good for long time, that obviously depends on how many projects you do but for a hobbyist its more than enough.