I tried this problem over on Trains but got lost in the pile with no real answer.
I am assembling the Walther's REA Building kit(HO). When I initially glued the end pieces to one of the sides, I used a CA glue (Rhino Glue). In the course of moving the partially assembled model to another location, one of the ends snapped off.
I decided that the next time I would use a plastic glue(Micro Weld) instead of CA, so I scrapped all of the residue from both sides of the joint, end and side, and began attempting to get them to bond together with the plastic glue. I wanted to go back to a plastic glue as the CA actually overfilled the joint and it was difficult to get a "seamless" look like you can with the plastic glues which actually "melt" the surface of the plastic parts giving a smoother, joint. Also a plastic cemented joint is more pliable than a CA one giving a little more flexibility in squaring up the walls.
Sor far, I have tried regluing this joint at least four(4) times with no success. No matter how I apply the plastic glue it merely dries in the joint without bonding. I'm wondering if the problem is that once you've used CA on a plastic joint you can no longer ever use a plastic glue.
I should have added at the start of this thread that I scrapped the joint clean of any CA residue with a xacto knife the first time I tried the Micro Weld and then each succeeding time after trying the Micro Weld. Also, I used Micro Weld to glue the other parts of this kit such as windows, doors, and the brace/filet between the walls without any problem.
I think the problem has something to do with a chemical change, whether visible or not, on the plastic surface after the CA has been applied. The result is that the new surface resists penetration by the plastic glues, at least Micro Weld.
Anyone else had/solved this problem??
George
I am assembling the Walther's REA Building kit(HO). When I initially glued the end pieces to one of the sides, I used a CA glue (Rhino Glue). In the course of moving the partially assembled model to another location, one of the ends snapped off.
I decided that the next time I would use a plastic glue(Micro Weld) instead of CA, so I scrapped all of the residue from both sides of the joint, end and side, and began attempting to get them to bond together with the plastic glue. I wanted to go back to a plastic glue as the CA actually overfilled the joint and it was difficult to get a "seamless" look like you can with the plastic glues which actually "melt" the surface of the plastic parts giving a smoother, joint. Also a plastic cemented joint is more pliable than a CA one giving a little more flexibility in squaring up the walls.
Sor far, I have tried regluing this joint at least four(4) times with no success. No matter how I apply the plastic glue it merely dries in the joint without bonding. I'm wondering if the problem is that once you've used CA on a plastic joint you can no longer ever use a plastic glue.
I should have added at the start of this thread that I scrapped the joint clean of any CA residue with a xacto knife the first time I tried the Micro Weld and then each succeeding time after trying the Micro Weld. Also, I used Micro Weld to glue the other parts of this kit such as windows, doors, and the brace/filet between the walls without any problem.
I think the problem has something to do with a chemical change, whether visible or not, on the plastic surface after the CA has been applied. The result is that the new surface resists penetration by the plastic glues, at least Micro Weld.
Anyone else had/solved this problem??
George