Mold building resin

Those wrinkles are caused by the lamanent compacting. A good way to prevent it is to apply vacuum slowly, and, dont use a solid piece of peelply.

If you cut the peelply into strips it will allow each piece to act independant of each other when the part starts to compact.

Wont cure the problem all the time. Just minimizes it.

Wet lay up vacuum bagging is an art. Most of us suck at it.

I think what racedout and I are saying is get off our a** classicbike.

Some info you provide is useful, but when you start telling people how to run their own business, well that my friend is not your business.

I appreciate your useful information. And are we perfect or making perfect parts at this point, no. We are learning and that is why we come here. Our learning process as posted here also provides info to folks who too are learning and don’t want to repeat others mistakes. A lot of time spent here by me is learning from others mistakes so i can hopefully avoid making the same or similar ones.

If someone wants to spend $200 to make a part, let them it’s their money. Now if someone asks how they can save money and time then that is something different. It’s also a learning experience for them and in time we each with knowledge gained will iron out the wrinkles in our businesses.

I’m not trying to be a jerk and I do appreciate the usefull info here. Later if i can help provide useful info to others who are in need then that’s what this is all about. Let each person “worry” about their own product marketability.

that is a very good idea, i made 2 parts 1 had more wrinkles and the other didnt have any at all really…ill try the strips of breather fabric and see how that goes

If you want to make money from selling anything whether it be a carbon fibre bike part or a wooden coffee table say, you have 2 main things to consider: 1) Quality of the item 2) Price of the item.

Of course before getting to a stage where you need to look at 1 and 2 above, you need to know if there is any demand for the product.

If you feel you are likely to be able to produce top quality parts, using expensive materials, and charge premium prices for the parts, when you sell them through your business, then I for one wish you the very best of luck!

I make all my tooling out of Epoxy. I’ve found a couple of sources of extremely inexpensive epoxy. One advantage of polyester,though, is that you don’t need to use a vacuum when making a mold or part. When making molds,especially from existing parts,it is often difficult (or impossible) to use a vacuum. Contact molding (not using vacuum or any other pressure) is not very suitable with epoxy as voids get left in the laminate. However,the epoxy/dough method does not require vacuum and can be applied all in one sitting. This time saving, including not having to use crating on the back (as it is so stiff) would even impress Classic!