KelpKritter Posted May 24, 2013 Report Share Posted May 24, 2013 Just received the RP-40 resin today and cast a few pieces and really like the way they came out. Using the same ratios as I was with the resin from AeroMarine the pieces weigh virtually the same but the sink rate is much quicker with the Dascar product. I will have to fool around a bit to see what adjustments I need to make. My question for those of you that use this resin is how long are you letting the blanks cure before painting and clearing the bait? Are there any other tricks you have found useful prior to painting? I found with the AeroMarine resin that there was a greasy feel to the cast pieces and they need a good deal of time to "dry" and then they were cleaned with denatured alcohol before the painting process. Even then there were times where the paint would bubble after the bait was completed. Hoping for good results as I move forward with this new product and the Solarez I have been fooling around with. Quote Link to comment Share on other sites More sharing options...
A-Mac Posted May 24, 2013 Report Share Posted May 24, 2013 I ran into the same issues recently with aero marine. I've had a 2 gallon set for about 3 years, so I figured that probably had something to do with it. I called them up just to see and was informed that the rapid warm up this spring was having this effect on their resins. They said I could heat the lures for 3-4 hrs at 150F and it would bake out the oils. I tried this method and it worked. However, you must be careful with heating resins due to the isocyanates (spelling) that are in them. Aeromarine said to make sure the resin had cured fully before baking. In addition, they said to use an over that YOU ARE NOT GOING TO USE TO COOK FOOD. Also, you need adequate ventilation. I have a lab oven in my garage, and I just open up the door when I'm baking. Quote Link to comment Share on other sites More sharing options...
KelpKritter Posted May 24, 2013 Author Report Share Posted May 24, 2013 A-mac, I read your recent post about the oily residue which prompted my questions about the new resin since I had never used it before. From what I have seen the Dascar product is much harder initially out of the mold and is very dry. I used the Aeromarine resin for close to two years and noticed differences when the baits came out of the molds but was not pouring consistently enough to put the changing weather conditions into the equation for possible reasons for the oily surface that I got at different times. Even though I still have some of the Aeromarine resin, one part's viscosity was changing and the baits became harder to pour and the material became more like a foam, expanding nearly double in volume. Now I have to swim the baits to see what properties may have changed and make the appropriate adjustments to fine tune the pouring process. Quote Link to comment Share on other sites More sharing options...
wchilton Posted May 24, 2013 Report Share Posted May 24, 2013 I use the Aeromarine resin for replicating my master soft-bait patterns. Bubbles/foaming occur if it gets moisture in it. It's pretty dry where I am, so it took over a year for humidity to start causing problems. The oil/residue isn't an issue for me because I'm not painting it, however I have noticed that the cured parts get softer/flexible when heated. Quote Link to comment Share on other sites More sharing options...
Titusmon Posted July 31, 2019 Report Share Posted July 31, 2019 Where can I buy rp40? Quote Link to comment Share on other sites More sharing options...
