How long does it take for polyester resin to harden? [links]
See full version: Will fiberglass resin harden without enough hardener
How long does it take for polyester resin to harden? [links]
Also Know, how long does fiberglass resin take to harden? here
Also, will Bondo hardener work with fiberglass resin? Once mixed, the fiberglass resin will cure in 2 hours. Directions for Use Use hardener with Bondo Fiberglass Resin. For small applications use 10 drops of hardener per ounce (2 tablespoons) of the resin. For larger applications, use half of the liquid hardener supplied, to half of the resin container. here
The hardening process begins immediately, so only add catalyst to a working quantity. Once catalysed the resin gradually cures, taking on a jelly-like consistency in about 10-20 minutes before becoming hard in about 30-40 minutes at room temperature (about 20ºC). The curing process generates heat within the resin. here
It is only when mixed with an epoxy hardener that they can cure properly. If applied onto a floor without the hardener, the resin would remain a near liquid indefinitely and could not transform into a durable flooring system. more
Adding too much color will slow down or inhibit the cure. During the curing process, the catalyzed resin goes through a series of stages from a liquid to a 'soft gel' in about 15 to 20 minutes, a 'firm gel' in 20- 30 minutes and finally to a 'click-hard' (cured) stage in 1 to 24 hours.
How much hardener do you put in fiberglass resin? [links]
Secondly, will Bondo hardener work with fiberglass resin? Bondo Fiberglass Resin Liquid Hardener for use with Bondo Fiberglass Resin and Bondo Metal Reinforced Filler. Used as part of a 2-part system, the liquid hardener is mixed with fiberglass resin to create extremely strong, durable and waterproof repairs. Once mixed, the fiberglass resin will cure in 2 hours. here
Regarding this, how long does fiberglass resin take to harden? here
On their own, epoxy resins are very stable fluids with relatively long shelf lives. It is only when mixed with an epoxy hardener that they can cure properly. If applied onto a floor without the hardener, the resin would remain a near liquid indefinitely and could not transform into a durable flooring system. here
The ratio range for catalyst to resin is 1 to 2 percent hardener to the total volume of resin to be used. For example, four drops of hardener will be 1 percent of 1 ounce of resin. Adding more of less of the catalyst agent will speed up or slow down the curing time for the resin. more
without it the bondo will never get hard. put a lil glob of bondo on a board and run a line of hardener over the top from end to end. mix it up and apply, it should give you about five minutes working time before it starts to harden. once it starts tacking up, stop trying to apply it or you’ll just mess it up.
Don’t wet sand filler. Filler is too absorbant and you can have problems getting it dry plus you could cause moisture to wick through to the metal or weaken the bond between the filler and the substrate. here
Can you use Bondo without the hardener? without it the bondo will never get hard. put a lil glob of bondo on a board and run a line of hardener over the top from end to end. mix it up and apply, it should give you about five minutes working time before it starts to harden. once it starts tacking up, stop trying to apply it or you’ll just mess it up.
How long before you can sand Bondo? 10 to 15 minutes
without it the bondo will never get hard. put a lil glob of bondo on a board and run a line of hardener over the top from end to end. mix it up and apply, it should give you about five minutes working time before it starts to harden. once it starts tacking up, stop trying to apply it or you’ll just mess it up. more
My ability to make perfect miter cuts is still very primitive at this point, so the Bondo does a great job of filling in the gaps. Since this is my first experience with woodworking, I probably should not have made a complex design such as a sloped panel with angled outcroppings on each side. So it was difficult for me to cut the side and angled side pieces and have them all be the proper height. They looked the right height to me, but when I put the top on the P1 side had a pretty big between the top of the side pieces and the CP Top. I went and took some wax paper and put it on top of some spare plywood I had. I then clamped/tacked the plywood to the CP sides to create a mold for the Bondo. I put a good bit of Bondo in there so that I’d have more than I needed, and let it harden. I will say that the fumes from this Bondo is pretty damned potent.
Hit your piece with a heat gun see if you can get your resin to really bubble and smoke. more
Spray on some hardener with a cologne or perfume bottle. Just a small amount. more
Hit it lightly with heat gun again and let it sit for an hour or 2. more
Still tacky? Put it in a curing oven. Any heat resistant container lined with tinfoil and blow hot air with either your heat gun or hairdryer for about an hour. This will help get everything that has enough hardener to set. Alternative is to use a heat lamp. Sit for about an hour and have some coffee. here