Kilz

[Jacko264]

Hi All
can i ask what is Kilz is it a special type of primer for OBS boarding
thank you
Graham

 

[Falcon67]

Lots of people use an oil base primer for OSB, probably a lot cheaper than Kilz.

 

[Milton Shaw]

Kilz is a special primer for fire/mold coverup. It is used as a primer coat over smoke damaged walls and then covered with finish paint. It comes in a water base and a solvent based that is better than the water base. it does cover a lot of stuff better than regular primer and that is why it was recommended for OSB.

 

[Falcon67]

Not that using any water base paint or primer MAY result in surface lifting. Fuzzing, etc - why many use the oil base types.

 

[PoorOwner]

Do you really have to prime OSB? Can you just put exterior latex on it without priming?

 

[Whitworth]

Kilz is (originally) a stain-blocker, available in gallon cans and marketed as both a stain blocker and primer. At either purpose it falls short. It's a mediocre stain blocker, BIN (a brand of pigmented shellac) is much better. As a primer, Kilz is expensive and the oil version stinks to high heaven.

 

[Falcon67]

Do you really have to prime OSB? Can you just put exterior latex on it without priming?

You can - two things. 1) is the water in the base fuzzing the surface, maybe and 2) it'll **** paint like pouring it down a drain. That said, I'd seen OSB that looked decent after two coats sprayed with quality latex, so it can go either way.

 

[walrus]

I used it as primer on OSB, worked great for me

 

[Number2]

After sheeting the inside of my pole barn with OSB, I went to Sherwin Williams. They tried to sell me on some $40 a gallon oil primer. I headed over to Lowes and grabbed a Zinsser product for $17. Smells strong and goes on thick. But it worked great.

http://www.lowes.com/pd_192480-90-3501_1z0vitvZ1z0yye2__?productId=3609490&pl=1

Oh and plan on using cheap rollers and brushes and then just toss them.

 

[fteufert]

2 coats of Kilz oil based primer, and then a top coat of latex white.

It might not be the Taj Mahal, but it looks good and saved me money for my toys

 

[rlitman]

Kilz is (originally) a stain-blocker, available in gallon cans and marketed as both a stain blocker and primer. At either purpose it falls short. It's a mediocre stain blocker, BIN (a brand of pigmented shellac) is much better. As a primer, Kilz is expensive and the oil version stinks to high heaven.

I've had the opposite results.

Kilz is a brand. They make several primers. Kilz Original is an oil based primer that I like to use on untreated wood (OSB included). They make a low odor (called odorless) version that is even better (with teal highlights on the label). They also make a "gold" label Premium version that has more pigment added for better hiding (if you need that).

In any case, I have found that resinous knots in pine will stain through latex overcoats, unless primed with an oil based primer first.

B-I-N is a shellac based primer. WARNING: Shellac based primers are completely unsuitable for exterior use! Moisture will cause them to fail.
For interior use, they have the distinction of sticking to anything. Want paint to stick on top of polyurethane, glass, even many plastics? No problem, just use a shellac primer. But it won't stop wood resin and oily stains from oozing through and blemishing the paint above years later.

 

[Schurkey]

the oil version stinks to high heaven.

I was doing some flood clean-up back in '98. Painted the plaster basement walls with Kilz. I wasn't sure I was going to make it up the stairs. I was wobbly for an hour.
Solvents will fukk you up. Sure worked with me.

2) it'll **** paint like pouring it down a drain.

Find your pore key, and close all the pores prior to painting. It worked on Green Acres.

 

[CGT80]

Cover Stain oil based primer used to be my go to, before they made the water based version (great primer along with 123 primer). I used BIN for badly stained interiors and smoke and fire damage. Kilz is junk. Cover stain sticks to glass and tile, and kilz says to sand or de-gloss first, if you read the labels.

Spraying interiors with BIN can be pretty nasty. I used alcohol to thin it and clean up, but it isn't cheap cleaning an airless out with thinner at 20 bucks per gallon. Home depot pushed kilz primer (over behr oil primer) but as a pro for about 20 years, I knew what I wanted to use. Zinsser is where it is at.

 

[NUTTSGT]

It's not especially for OSB. The oil-based version is what I used, worked for me, readily available and what I'd recommend for OSB priming.

Yes, it stinks and you need some ventilation when you do it or you apply it and leave the area.

Is there something better out there ? Everybody is never going to agree on anything, 6 of one and half dozen of another.

 

[Joemctag]

Shellac ( or shellac primer like B-I-N ) has been what to put on pine knots before priming and painting. They usually bleed through their other primers in a couple years, maybe. This used for o be common knowledge among all who worked with wood. You could still have a knot bleed through and have to re-finish that spot, but no other primer is considered the thing for pine knots.

 

[ddurrett896]

Kilz is for covering odor. Bought a house that was smoked in for 30 years. Covered every wall in Kilz before painting and don't have a problem.