Seam Sealer - Opinions Sought

Post any technical questions or queries here.
Post Reply
User avatar
cobolman
850 Super
Posts: 125
Joined: Sun Dec 24, 2023 5:46 pm
Location: Plymouth, Devon
Has thanked: 19 times
Been thanked: 12 times

Seam Sealer - Opinions Sought

Post by cobolman »

Hi All

I had a few questions about seam sealer:

1. Should it be applied to the interior, exterior, or both?

2. Should it be applied on top of primer, or on top of bare metal?

3. What's your particular favourite of seam sealer? - Bonus points if you tell us why
--
Cobolman. Conservator for:
Marty - 1960 Mk 1 Austin Seven Mini De-Luxe
minibitz
998 Cooper
Posts: 366
Joined: Fri Aug 08, 2014 11:06 pm
Location: New Zealand
Been thanked: 2 times

Re: Seam Sealer - Opinions Sought

Post by minibitz »

1. Apply to both sides. You want to prevent water ingress to all lapped seams.

2. Apply on top of epoxy primer. The primer seals the metal, sealer provides a barrier to water ingress where there are gaps.

3. I use SikaSeal. I'm sure there are many other options depending on which territory you live in.

I also run a bead of this sealer between the door frame and skin when fitting door skins. This forms a barrier seal between the two panels preventing the typical mini lower door rust that forms and then bursts out through the door skin.
Post Reply