Page 1 of 1
Mastic tips
Posted: Sat Aug 15, 2020 4:26 pm
by Bonne Idée
It’s routine maintenance time and I’m touching up/replacing some of the external black and white mastic on the deck and rubbing strip. Any suggestions on a good make to use?
Re: Mastic tips
Posted: Sat Aug 15, 2020 8:48 pm
by bellalistair
Hi,
Sikaflex is the usual answer, type 291 for most jobs.
Cheers,
Alistair
Re: Mastic tips
Posted: Sun Aug 16, 2020 11:43 am
by erbster
This post from my blog might help:
https://travellingaurora.wordpress.com/ ... or-marine/
Cape Cutter #86 Aurora
travellingaurora.wordpress.com
Re: Mastic tips
Posted: Tue Sep 01, 2020 3:53 pm
by Malcolm Sadler
A very good PBO review of ten sealant/adhesives here
https://www.pbo.co.uk/gear/which-adhesi ... best-20877
Obviously Sikaflex (presumably now 291i) is what we had from HM on new boats if that’s what they did as maintenance and Charles’s pictures and commentary are a great help with that job. Thanks Charles as I will need to re-run the seal beneath my port rubbing strake
But I was interested that the PBO article didn’t rate 291i very highly - albeit they may have been focusing on adhesive qualities and it is important sometimes to have a sealant that is not going to pull off your gelcoat if you need to take A fitting off.
I will be fitting new S/S deck fittings for my turning blocks and in view of the PBO comments I have decided to use butyl tape/putty rather than Sikaflex where steel is concerned.
All the best
Malcolm