bikeboy23332

cant find any hylomar anywhere. ive been told i can use small amounts of silicone instead. any place that might sell hylomar that i havent checked ie all autopart stores. would i be ok with silicone ?

jjwalker

I thought mazdatrix sold hylomar?

Also, Hylomar is polyurethane based sealant, not silicone based. I personally wouldn't use silicone at all.

bikeboy23332

was hopping to not have to order it

arghx

iTrader: (3)

There's no reason to use Hylomar. in its current form (I heard it used to be different back in the day) it gets very sticky very quickly and is a pain to apply. Get some Crisco (the blue tin) and use that to hold in your coolant seals.

bikeboy23332

wow havent heard that one before. other opinions???

arghx

iTrader: (3)

full thread on it https://www.rx7club.com/rotary-car-performance-77/possible-hylomar-replacement-746543/

again I tried hylomar but I didn't like it

Aaron Cake

iTrader: (1)

Yeah, the "Hylomar" sold now sucks compared to the good stuff. Luckily, I have like 20 tubes of the good stuff which I bought when I heard rumors of its demise.

Anyway, Vaseline is an acceptable substitute. Mainly the Hylomar just holds stuff in place. If you have pitted areas you need to seal, then a very light coating of RTV or another non-hardening sealant (aircraft sealant) will work.

bikeboy23332

dam you ^ haha i think im going to go with a light coat of rtv black

arghx

iTrader: (3)

I like the Crisco because it's the easiest to clean up

The Shaolin

iTrader: (5)

Hmmm...we'll see how my engine, put together with new hylomar, holds up

calwell

iTrader: (1)

probably smells great when first fired up too

Aaron Cake

iTrader: (1)

It will be fine. The real difference is that the new stuff is a pain in the *** to work with. I don't think it's functionally different in any significant way. I've so far done two engines with the new stuff and they are both fine.