I use Latex Contact Cement to attach cork roadbed to the plywood subroadbed. To "paint" on the contact cement I use the cheapest brushes I can find at Home Depot, flea markets, anywhere. Most of you have seen them, wooden handles, some type of artificial bristles, usually costing $1 or less if you buy in bulk. Anyway, I am in the process of building a medium/large sized layout and it seems that these only last one session of cementing cork and subroadbed before they are totally stiff and useless due to the bristles becoming clogged up with cement. I have tried washing them in cold water, warm water, warm water with soap, all to no avail. While the cost of replacement isn't large, there is an annoyance factor having to go to the hardware store with regularity to get replacements. Has anyone any good suggestions on cleaning Latex Contact Cement out of a brush?