toddshirk44 Posted June 7, 2014 Report Share Posted June 7, 2014 I painted some Spenner blades then Houston automotive clearcoat. The blades sat around for a couple weeks so I know they had enough time to dry. I put them in a glass water for 48 hours when I brought them out I could take my fingernail and chip the paint and clearcoat. Does anyone know what could of went wrong? Is there an automotive clear coat that you guys would recommend trying. Should I be using a different kind of paint this application? Thank you for any suggestions and help! Quote Link to comment Share on other sites More sharing options...
BobP Posted June 7, 2014 Report Share Posted June 7, 2014 You didn't say what paint you used? And is the Houston clear a two part catalyzed clearcoat? Two part clears are tougher and adhere better than one part clears - but they are also toxic so wear a rated mask if you use them. The best results I've had painting metal blades are with acrylic airbrush paint and clear coating with Dick Nite S81 moisture cured urethane, which will soak into the paint to adhere to the metal. Very durable after the clear cures for several days. Dick Nite also sells solvent based lacquer paints, which would probably adhere even better. Access the Dick Nite TU discount site page here if you go that route: http://www.dicknite.com/TU_Lander.htm If you just want better adhesion using the products you have, I recommend giving the blades a light sanding to improve adhesion of the paint. You can also use an etching auto primer on the blades before painting. Downside is that the more coatings you put on the metal, the heavier the blades become so keep the coatings thin if you can. 2 Quote Link to comment Share on other sites More sharing options...
