Model Boat Mayhem - Forum

Please login or register.

Login with username, password and session length.
Pages: [1]   Go Down

Author Topic: Polyester and epoxy resin compatibility  (Read 148 times)

Popeye

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 291
  • I see no ships!
  • Location: Upminster, Essex, England
Polyester and epoxy resin compatibility
« on: November 28, 2019, 02:19:26 PM »

Will one type  of resin cure properly and adhere to the previously applied other resin?
Logged
Confucius he say, 'if all else fails.......reach for the  Red Top-Stop'.

SailorGreg

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 809
  • Money talks - it says goodbye
  • Location: Hayling Island, Hants
Re: Polyester and epoxy resin compatibility
« Reply #1 on: November 28, 2019, 04:03:07 PM »

The rule of thumb is that you can apply epoxy to a polyester item (to repair, stick something, or whatever) but you can't reliably add polyester resin to an epoxy item.

Of course, for models the stresses and strains are usually tiny compared to full size stuff, so you can often get away with what many might consider poor practice (such as using car body filler to glue things together  :D ).

Greg

Popeye

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 291
  • I see no ships!
  • Location: Upminster, Essex, England
Re: Polyester and epoxy resin compatibility
« Reply #2 on: November 28, 2019, 04:28:37 PM »

The rule of thumb is that you can apply epoxy to a polyester item (to repair, stick something, or whatever) but you can't reliably add polyester resin to an epoxy item.

Of course, for models the stresses and strains are usually tiny compared to full size stuff, so you can often get away with what many might consider poor practice (such as using car body filler to glue things together  :D ).

Greg


Thanks Greg. All is clear now.
Logged
Confucius he say, 'if all else fails.......reach for the  Red Top-Stop'.
Pages: [1]   Go Up