Hey, well over the past couple days ive been smoothing out the wall that ive had for about 3-4 months. i couldnt do anything before because it was -15 degree C all the time. the last few days have been +2 to 4 degrees, warm enough for a tshirt. but today its about -2. If i kept goin today, itd be done and painted, but is it too cold for bondo to cure? or will it just take longer to cure? thanks

As long as it's mixed correctly, it will just cause a longer cure time. You can always mix it "hot" by adding a little more hardener, but then you run the risk of waste and less work time. Also, keep in mind, it may not adhere properly to a cold material. That's what you really have to worry about.

thanks thats good to know, never even thought about the temperature of the material i was applying to though, but it came out good. paint tomorrow if it stops snowing

I would also like to add , that mixing resin hot is okay to an extent . Mixing it too hot will cause it to cure to fast and result in shrinkage and cracking sometimes . Bondo on the other hand . I don't mix filler hot . It changes the sandability ( new word nukka ) of it . The hotter the mix , the harder it is to sand .

I need a full out tutorial on glassing and resigning boxes.

J

resining a box is easy . Mix the resin , pour in box . Swish around for a minute or so to coat everything . Go back and touch up areas you missed with a brush .

Okay what do I mix to make resin?

J

Okay what do I mix to make resin?

J

You just buy the resin from a hardware store and mix in the hardener

you mix mekp with polyester resin , or the specified catalyst for your brand of epoxy . I wouldn't add talc or anything . Using resin on the inside of an enclosure is purely for sealing purposes , it adds little to no strength. Adding talc or other fillers will inhibit the resin from doing what you want it to , which is sealing the mdf in this case .

Using resin on the inside of an enclosure is purely for sealing purposes

Don't let the SPL guys hear you say that.

actually let them hear it.

From my understanding of SPL sealing it so less air has a chance of getting out =good

Therefor its benifical to SPL.

J

But that is not their theory.

There are other Cheaper products that work just as well for the same purpose , and do actually add structural strength . But they never listen

please inform me

J

actually let them hear it.

From my understanding of SPL sealing it so less air has a chance of getting out =good

Therefor its benifical to SPL.

J

also smooths airflow a little . Not as much as proper enclosure design can . But enough to make some sware by it

please inform me

J

Polyurethane pl roofing sealer is a poly based roofing coating that has long strand fiberglass in it . It hardens like a rock , goes on and can be smoothed with a trowel . And cost like $30 for a 5 gallon bucket of the stuff . But people here the word polyurethane and automatically think of the poly used for finishing furniture. There are all kinds of poly based products

I am getting excited to start building!!!

J