Mixing MarineTex- Too Runny

[Killroy]

When I mix marine text, per the instructions on the box, it's too runny in my opinion. What I'm basing my observation on is my previous experience with accuraglass. I really like the stiffness of that product.

Everywhere I read says marine text will be about like peanut butter. Like said, what I'm seeing is it's not quite that stiff, it won't hold it's self up very well. It slowly droops under its own weight.

My question is: do you guys modify your mixing tune up slightly or am I just that dense I can't mix a 2 part epoxy?

 

[DaveTooley]

I wouldn't say it's like peanut butter, more like mayonnaise.

 

[std7mag]

Let it sit a minute of couple.
It will start to stiffen up.
When it gets to the desired consistency apply.

Just be aware that doing this will reduce your working time.

 

[tobnpr]

Marine-Tex is more sensitive to mix ratio than many other epoxies based on my experience using literally gallons of it on boats over the years. Great product, I just prefer others for small jobs like bedding.

Be sure your 5:1 mix by volume (or 6.3:1 by weight) is accurate.

 

[46and2]

Marine-Tex is more sensitive to mix ratio than many other epoxies based on my experience using literally gallons of it on boats over the years. Great product, I just prefer others for small jobs like bedding.

Be sure your 5:1 mix by volume (or 6.3:1 by weight) is accurate.

Yep, the magic ratio is 6.3:1 by weight.
Don't alter the ratio to modify consistency, you'll compromise it's strength.

 

[Killroy]

Yep, the magic ratio is 6.3:1 by weight.
Don't alter the ratio to modify consistency, you'll compromise it's strength.

Thanks, I'll mix my next batch by weight

 

[Will Henry]

You can chop up some fiberglass insulation, very fine, and mix it in to get the desired consistency. WH

 

[Edd]

I have always wished Marine Tex was thin enough to pour.

 

[AlNyhus]

Thanks, I'll mix my next batch by weight

How did you mix it? -Al

 

[farmerjohn]

How did you mix it? -Al

Thinking I hear a trick coming and I don't want to miss it.... John

 

[AlNyhus]

Thinking I hear a trick coming and I don't want to miss it.... John

No...just curious.

 

[Killroy]

How did you mix it? -Al

Per the instructions. I use a measuring spoon and go 5:1 or buy the 2oz kit and mix the entire tub of resin and harder, again just like the instructions say

 

[WayneShaw]

I have always mixed by volume, lay both parts out on a plastic piece cut out of a bottle, then use a screw driver and fold/stir/swirl until the color is consistent. I like the consistency of it, thick enough to stay put, but thin enough to smear where you need it.

 

[CAR]

You can add a small quantity of fumed silica to a epoxy resin to thicken it up if it’s too loose. A little does a good job.

Cabosil fumed silica

 

[LVLAaron]

^ Please be super careful with that stuff.