I have been working with the local office of Carpenter Brothers to get a quote for bonafide Petrobond components. The can supply P1 powder and raw sand but not oil and catalyst. Propylene Carbonate (catalyst) is available online and it was mentioned that there are hardware store alternatives. Here are the oils they recommend for making new Petrobond. This differs from the K-Bond oil list. I thought I'd place this up here and the brochure for posterity so the the next time I need it I can find it LOL. OILS USED WITH PETROBOND (TM) Manufacturer Trade Name ................................................... Texaco CANOPLUS 150 Shell Turbo 220 Sunoco Sunpar 120 Lubricants, Inc. Drexoil 170 Chevron Utility Oil 100 Baum's Castorine Tena-Film 900 Citco Amplex 150 Enterprise OiL Co. Binder Oil 700 Note: This list is not all-inclusive. Conventional refined oils without inhibitors, any paraffinic oil or naphthenic oils with a flash point above 400 degrees F will work. Oils with relatively low viscosity work best.
Interesting that the brochure barely mentions adding extra catalyst in the section on maintaining and troubleshooting petrobond. Several different times adding petrobond powder (and oil) is recommended. Jeff
if you do some math it very much makes sense, the amount of catalyst you add to virgin sand is miniscule , when you add catalyst to revitalizing sand at the 1% they recommend for other ingredients, it would round down to Zero. and too much catalyst, will make the sand fluffy, which is nice for flowability, but can make ramming a major chore, I prefer my sand a little fluffier then most. so I hit it with a mist from a spray bottle about every other mull V/r HT1
