Unless you like sanding I'd avoid water-based primers. I've used pre-catylised MDF undercoat, but that can be hard to find in small quantities, however Zinsser make a sealant called "B-I-N Multi Surface Primer" which our decos used on a job in Manchester with good results. Don't know if it is water based, however. Hopefully @opps will chime in with some advice as this is his field
Thanks for this. Where can I get it and is it expensive? I only need a small tin.BIN is shellac based. It is the product that I too would probably recommend- if OP isn't overly fussy about the quality of finish, more on that later...
The solvent is alcohol. It smells when you apply it but the smell of alcohol flashes off after 30/60 minutes.
You are correct that it has the ability to block smells. When we had three dogs, they would occasionally have accidents that would suck up in to the MDF plinths on the kitchen units that I stoopidly made from scratch. The BIN blocked the smells immediately.
I suspect that my finished standards are higher than the OP's though. I do use waterbased primer on MDF that is in situ, but ,as you said, it requires a lot of sanding to get it flat. y
EDIT- having looked at Rhino Shelves the shelves are in a racking system. Shellac based (read BIN) should be fine. Lift the shelves out and coat each side, wait 30 mins drop it back in.
Clean brushes or mini rollers with household ammonia- about £2 for 500ml. The brush or roller will be perfectly clean after use. Ammonia is alkaline based.
Never use foam rollers to apply it. The alcohol will break down the foam and within minutes you will witness the foam roller extend in length by up to one hundred percent
I think I might go for that one. The shelves themselves are quite smooth. I am not going to bother sanding them.The smallest tin is 500ml
Zinsser B-I-N Primer Sealer - Glenwood Decorating Supplies
Zinsser B-I-N Primer Sealer is the ultimate shellac-based primer, sealer and stain killer. Perfect for interior ceilings, walls, doors & moreglenwooddecoratingsupplies.co.uk
The prices seem to have jumped a lot since I purchased a can last year.
Much better value is a different (but identical) pigmented shellac paint- Blockade
Blockade - Pure Shellac For Ultimate Performance — Smith & Rodger - Paints & Shellacs since 1877
Blockade White Shellac Sealer Primer provides excellent adhesion to almost all interior surfaces such as previously coated and new wood, plaster, drywall, porous wallcoverings, metal and tile and requires minimal preparation before use.www.smithandrodger.co.uk
Rather than paying £17 for 0.5L of BIN, you can get a 1L tin of Blockade for the same price.
As an aside, BIN is available in spray cans but I have always found that it clogs very quickly and can start to splatter.
I think I might go for that one. The shelves themselves are quite smooth. I am not going to bother sanding them.
I take it after they are primed I can just use a gloss paint on them then? The reason I got the Rhino ones was because I need ones I could adjust the height. I have various reference books that are quite tall. Thanks