urethane foam

Quinc

Buy a Superjet
Location
California
2qrt should be enough. Soak the containers in hot water and use a space heater in your tray with a blanket or something thrown over it to. The hotter it is the more the foam will expand.
 

Roseand

The Weaponizer
Site Supporter
Location
Wisconsin
Make sure none of it gets on something you don't want it on! Two part foam is a PITA to get off of stuff.

Sent from my SM-G920V using Tapatalk
 

Quinc

Buy a Superjet
Location
California
What they said^^ You might be better off getting the pink foam from HD and using it instead. It also doesn't absorb water.
 

Vumad

Super Hero, with a cape!
Location
St. Pete, FL
Remember it depends on the density. It would be ideal to use 4 or 8lb under the tray and 2 in the gunnel.

You can avoid some paint mishaps by waxing everythjng and covering it with packing tape. Not a job for painters tape, but you could cover with painters then cover that with packing.
 
I used pink foam for the majority of the tray and then expanding foam just to kind of fill gaps and help provide a little extra structural support. That way any water that gets in wont be absorbed by the pink foam and even if 100% of the minuscule amount of expanding foam got waterlogged it would hardly add any weight. It's worth considering but cutting pink foam adds a lot of work.
 

Big Kahuna

Administrator
Location
Tuscaloosa, AL
Remember it depends on the density. It would be ideal to use 4 or 8lb under the tray and 2 in the gunnel.

You can avoid some paint mishaps by waxing everythjng and covering it with packing tape. Not a job for painters tape, but you could cover with painters then cover that with packing.
Most of us find out the hard way. I did, on a freshly painted ski.
 

Vumad

Super Hero, with a cape!
Location
St. Pete, FL
I have problems with nitrile gloves. I have to wear cotton or work gloves under the nitrile gloves. My favorite gloves to use as liners are the $2 work gloves from harbor freight. They are just be right amount of thickness and dexterity.
 
Location
PHILLY
Hey Bryan. The drains alone aren't working for ya? I just bought some of the new style Thrust mini drains. But now I am thinking maybe I should of had Rage install foam as well. I thought Josh was going to add some but he ended up going foamless and I have water getting in there as well. Guess water intrusion was going to happen -foam or not- so I needed drains either way. In a way I'm glad no foam so it cant get water logged,.....but obviously I am worrying about having no foam in my ski and having it sink?!!!
Ski was finally built and turfed/painted so cutting open the tray really isn't an option now, so I would have to do the pour foam as well. But since I KNOW I have water getting in there I am worried that I will have a waterlogged tank!!! (Probably had 1-2 gallons after 1st 15 minutes out on it.) Not sure what to do!
But just curious why you're deciding to foam now?
 
Hey Bryan. The drains alone aren't working for ya? I just bought some of the new style Thrust mini drains. But now I am thinking maybe I should of had Rage install foam as well. I thought Josh was going to add some but he ended up going foamless and I have water getting in there as well. Guess water intrusion was going to happen -foam or not- so I needed drains either way. In a way I'm glad no foam so it cant get water logged,.....but obviously I am worrying about having no foam in my ski and having it sink?!!!
Ski was finally built and turfed/painted so cutting open the tray really isn't an option now, so I would have to do the pour foam as well. But since I KNOW I have water getting in there I am worried that I will have a waterlogged tank!!! (Probably had 1-2 gallons after 1st 15 minutes out on it.) Not sure what to do!
But just curious why you're deciding to foam now?

You had 1-2 gallons of water in your tray after riding 15 minutes!? Is it supposed to be sealed?
 
Location
PHILLY
Not sure exaxtly. Maybe a little under 1 gallon?!! Seemed like a lot though. It's my 1st AM hull and I hear they all leak somewhat. But we weighed it and it was definitely at least 8 lbs lighter after drilling 2 holes and tipping and draining it. I bought some Thrust drains for it so hopefully it will drain most out itself coming up the dock on the trailer, but I'll probably have to lift the front up every ride on the stand to get it all out. But that's why I'm hesitant to have it foamed as i don't want the foam to get water logged.
 
Location
PHILLY
Yeah the new Thrust mini drains are the ball type. I know Rage's comp skis are open bulkhead with no foam,...so although mine isn't a "comp layup" it may be built the same way,...which it probably is since they built mine with no foam as well. But we didn't have the holes drilled for drains so I'm really not sure?!! I'll be heading up there soon to pick it up so I will ask them then.
I know they build SOLID skis and Josh assured me it wont sink!!! But I am still considering foaming it "just in case"!!! haha
I just don't want to have it cut open to install the pink foam, but at the same time I don't want my ski to get water logged!
I'll probably be fine with the drains installed as I don't plan on taking it in surf and I usually don't go too far from the loading ramp at my usual riding spot. But Ij ust read the thread about the RIP sinking and I got a little concerned!
 
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