MAKING BITUMEN WATERPROOFER BRUSHABLE AGAIN:

[RONCHAM]

Hi all - I've been using brush-applied fibre filled bitumen waterproofer (from a 5 litre tin). At risk of being told it should have been obvious, the instructions did not advise to stir before or during use (so I didn't!). Initially the contents were paint consistency and brushed on easily - but after about two hours (and quite suddenly) became quite stiff and impossible to apply by brush.

My question is how do I make this waterproofer brushable again. Do I add white spirit or could I add water??

The instructions DID say to clean all tools with white spirit.

Advice would be appreciated.

Regards.

 

[gregers]

think i would be doing the whole lot again and this time make sure you stir the tin.

 

[RONCHAM]

Thanks for that.

Not quite the answer I was looking for and I'm not sure how well-informed?? If it was critical I'm sure the instructions would have made mention - even a humble tin of paint tells you to stir the contents (except for non-drip).

I've seen this problem raised elsewhere but the answers have always been a bit ambiguous - I'm presuming it depends if the waterproofer is water or solvent based?

The instructions do at least recommend two coats - at right angles to each other.

Further replies will be appreciated.

Regards.

 

[Burnerman]

If white spirit is the solvent for the brushes, then use this to thin your bitumen......definitely not water!
Keep the solution on the thick side so you get a heavy coat - but not so thick that's it's difficult to apply.
John

 

[RONCHAM]

Thanks for that - a much more useful answer! And confirmation of what I suspected.

It probably is a good idea to stir the contents from time to time and some people have suggested turning the tin upside down for a time. But I'm surprised there's no mention in the instructions - they usually cater for idiots (like me!).

Regards.