MAS low viscosity epoxy for repairing osmosis blisters

[Restoration man]

Hi I’ve got 1976 boat that’s got osmosis blisters I know this can be a very Controversial , subject so don’t want to get into wether I should be doing this or not , I ground out the blisters a year ago and now have no choice but to finish it off and re glass what I’ve taken out , I know this is not a cure etc etc , and no I don’t plan removing all the gelcote , now we have got this out of the way into the job in hand.
I plan on doing this with epoxy and biax toped
Off with international watertight , and I’ve regularly washed the blisters out with hot water over the past year , when grinding out some of the blisters we have a very resin staved layup in places , I can’t keep grinding as I will have no hull left
I’ve used west system epoxy on other jobs on the boat and find this product to be very thick , ive seen the low viscosity Mas epoxy and it seems much thinner and will hopefully soak into the dry fiberglass better ???
And Apparently you don’t get amine blush just wondering what the forum think? Would Mas be better bet than west ? I’ve spent year deciding what to do and I won’t be swayed by using epoxy but hope one of you might have an option on this

 

[zool]

Hi I’ve got 1976 boat that’s got osmosis blisters I know this can be a very Controversial , subject so don’t want to get into wether I should be doing this or not , I ground out the blisters a year ago and now have no choice but to finish it off and re glass what I’ve taken out , I know this is not a cure etc etc , and no I don’t plan removing all the gelcote , now we have got this out of the way into the job in hand.
I plan on doing this with epoxy and biax toped
Off with international watertight , and I’ve regularly washed the blisters out with hot water over the past year , when grinding out some of the blisters we have a very resin staved layup in places , I can’t keep grinding as I will have no hull left
I’ve used west system epoxy on other jobs on the boat and find this product to be very thick , ive seen the low viscosity Mas epoxy and it seems much thinner and will hopefully soak into the dry fiberglass better ???
And Apparently you don’t get amine blush just wondering what the forum think? Would Mas be better bet than west ? I’ve spent year deciding what to do and I won’t be swayed by using epoxy but hope one of you might have an option on this

I cant speak of Mas LV cuz I havnt used it, but im sure its fine for laminating. If ur planning to finish with gelcoat, I would suggest u consider a Vinylester gelcoat instead of poly based even tho the LV amine free.

Another option would be to use Vinylester resin for the repair, and any gelcoat over that. The VE resin is alot less porous than poly and will do just as good a job as the epoxy in that type of repair..

 

[Restoration man]

I cant speak of Mas LV cuz I havnt used it, but im sure its fine for laminating. If ur planning to finish with gelcoat, I would suggest u consider a Vinylester gelcoat instead of poly based even tho the LV amine free.

Another option would be to use Vinylester resin for the repair, and any gelcoat over that. The VE resin is alot less porous than poly and will do just as good a job as the epoxy in that type of repair..

Thanks for your reply, I don’t plan on finishing with gelcote so epoxy is still my choice

 

[HAWKLINE]

Hi I’ve got 1976 boat that’s got osmosis blisters I know this can be a very Controversial , subject so don’t want to get into wether I should be doing this or not , I ground out the blisters a year ago and now have no choice but to finish it off and re glass what I’ve taken out , I know this is not a cure etc etc , and no I don’t plan removing all the gelcote , now we have got this out of the way into the job in hand.
I plan on doing this with epoxy and biax toped
Off with international watertight , and I’ve regularly washed the blisters out with hot water over the past year , when grinding out some of the blisters we have a very resin staved layup in places , I can’t keep grinding as I will have no hull left
I’ve used west system epoxy on other jobs on the boat and find this product to be very thick , ive seen the low viscosity Mas epoxy and it seems much thinner and will hopefully soak into the dry fiberglass better ???
And Apparently you don’t get amine blush just wondering what the forum think? Would Mas be better bet than west ? I’ve spent year deciding what to do and I won’t be swayed by using epoxy but hope one of you might have an option on this

 

[HAWKLINE]

DO YOU HAVE FOAM/ IT MUST COME OUT. DONT KNOW MAKO AQUASPORT. CUT FLOOR OUT REMOVE WET FOAM. ACID IN BUBBLES WATER SOAP POWERWASH. DRY USE EPOXY,OSMOSIS COMES FROM OLD RESINS .AT PRICES NOT WORTH IT AT THIS TIME.IT TOOK 6 YEARS TO DRY A 23 MAKO. SPENT 5000 THOW

 

[Restoration man]

DO YOU HAVE FOAM/ IT MUST COME OUT. DONT KNOW MAKO AQUASPORT. CUT FLOOR OUT REMOVE WET FOAM. ACID IN BUBBLES WATER SOAP POWERWASH. DRY USE EPOXY,OSMOSIS COMES FROM OLD RESINS .AT PRICES NOT WORTH IT AT THIS TIME.IT TOOK 6 YEARS TO DRY A 23 MAKO. SPENT 5000 THOW

hi it’s 1976 31 foot storebro biscay twin diesel Swedish boat , no foam under the floor , most of the stringers are hollow it’s a very clever design with no wood in them to rot and lots limber holes , stringers in the engine bay are foam filled but these are again very clever design as the Foam is designed to not touch the inside of the hull, with an air gap under it , so at Least it’s only the blisters that I’ve goto deal with