ldb2000
Member
Hi everybody
Just got my silmar41 from mr fiberglass...great people fast shipping...
and cast my first blank...almost...
I used 10 drops per oz as it says in the instructions and after 2 hours I still had blue soup.
I figured out that the problem is its too cold here in my shop...about 65F...I took my magnetic work light (100w bulb) and put it over the mold to heat the blank and it has almost cured ...about 45 min
The question is :
How do you people up north here get your PR to cure in a reasonable time? , Do you add more MEKP and if so how much?? , do you preheat the mold? , Do you have another way to keep the mold and blanks warm till they cure?
I have heard that adding too much MEKP can hurt workabilty so would prefer not to do that so any ideas welcome
And yes I know Alumilite dont have these problems but its more expensive and I dont like the way it finishes , I dont want to have to CA an acrylic blank
Any ideas welcome
Just got my silmar41 from mr fiberglass...great people fast shipping...
and cast my first blank...almost...
I used 10 drops per oz as it says in the instructions and after 2 hours I still had blue soup.
I figured out that the problem is its too cold here in my shop...about 65F...I took my magnetic work light (100w bulb) and put it over the mold to heat the blank and it has almost cured ...about 45 min
The question is :
How do you people up north here get your PR to cure in a reasonable time? , Do you add more MEKP and if so how much?? , do you preheat the mold? , Do you have another way to keep the mold and blanks warm till they cure?
I have heard that adding too much MEKP can hurt workabilty so would prefer not to do that so any ideas welcome
And yes I know Alumilite dont have these problems but its more expensive and I dont like the way it finishes , I dont want to have to CA an acrylic blank
Any ideas welcome