A Photo & Discussion Forum for Wharram Design Enthusiasts
Ahoi to the forum, I have found this website recently and at first put some pics of my Narai MK IV. I have bought her as a nearly finished project, and now I am building her the last 7 years, 3 years on the ground now for 4 years motoring and further on building.
one of the first things I mounted were the windows, made of acrylic glas mounted with SIKA flex glue, the specific sika for acrylic windows, without screws. I wanted to avoid screw holes in the windows. I also wanted to avoid making special window frames. I mounted the windows with distance pieces of 6 mmso the sika glue can "work" independent from the decks and windows.
Now after some years some of the windows are cracked from the outer rim to the center. The sika gleu itself is perfect glueing and the consistence is like it should, not dried out but flexible. I will add some pics soon in an album on by page.
I have repaired the cracks with a specific 2 component acryl glue, it works, it is dry inside again, but the cracks do not stop. Last year a already exchanged one window to a new one, but also this window turned out to get cracks.
Please comment on that since I will sail from next year on and when there is a better solution I will try to fix it before next season. Thanks!
There is cast acrylic and there is extruded acrylic. The cast acrylic is far superior to the extruded. I am not sure but I believe that you have used the extruded. It is much harder to work with as it tends to melt back together as you cut it and also tends to crack much easier. Learned this the hard way. David
What do they use to glue automobile winshields? Would that stuff work on arylic?