mold making problem

[Blue_Heron]

I am going to take your advice on the pva instead of duratech.

Don't do that, Josh. Use the PVA after you wax your mold, but before you apply the Duratech that makes the surface of your part. PVA is a water based mold release that forms a plastic film between the mold and the part. You have to spray it on, preferably at about 60 psi so it mists.

I see in your second pic another possible source of alligators. Looks like you used modeling clay to fillet your inside corners. I learned that from strick, and it works like a charm. But, the oil in the clay can mix with the resin in the Duratech and cause it to alligator, so again, the PVA is important. If you spray the mold with PVA after you complete your clay fillets, it will seal in the oil and protect against alligators.
Dave

[floorboy]

I think your finished part looks pretty good. You couldn't just fair the bad spots and be done with it??

[7521ply]

That helps a bunch thank you Dave! Thanks Floorboy, my plan is to do what I can to fix and smooth out this part. I just hope in time I can be as good as other members who make molds and to not have to do more work then I need.