MAS Epoxy medium hardener is a polyamine blend intended for moderate activity and resistance to blushing. Moderate pot life gel and thin film set times provide advantages when filleting and fairing.
MAS Epoxy Medium mixes with thickeners, gel and sets quickly enough to avoid draining and sagging, while still allowing ample flow time for controlled application periods.
This hardener is a good choice when overnight sandability is more important than continuous laminating and open time. Won't 'milk out' during application or fog up in critical clear coating applications.
Use protective gloves when working with this product. Use soap and water or white vinegar to clean your hands. Use Denatured Alcohol to clean your tools.
Rate Of Cure:
do I also need a resin with the hardener? at what proportion do you mix the 2
Yes you need both the resin and hardener. The bottle come with premeasured pumps so you always use the correct amount. The directions are easy to follow on the bottles.
Yes, you will use resin. You mix it the same as the other hardeners. 2 to one. Follow directions on containers, very easy to use.
Most Epoxies are 2 part systems. This one uses 2 parts resin to 1 part hardener. If you are mixing small amounts at a time, look at the pumps. The resin pump moves 2X the resin as the hardener pump, per stroke.
Yes you will need a hardener.mix ratio 2:1 2 resin : 1 hardener.
yes, you need two parts of the resin to one part of the hardener.
Two parts resin, one part hardener is required. The pump kit dispenses the correct mix ratio. Great epoxy system.
Would this product work well to fill cracks in wood turned objects?
This would work with sufficient filler - wood dust or other- to keep it from running out. For small voids use CA glues with an accelerator.
It can be used to fill cracks once you have finished turning the item. I would use the MAS FLAG resin with the medium hardener and thicken further with fine sawdust from the item turned. The thickness of the epoxy mix would depend on the size of the cracks.
If you are filling very small cracks it works well, if the cracks are over a 1/16" wide you could add wood dust to make a putty. Let the epoxy sit for a small amount of time to "thicken" start setting up so that it doesn't just run out of the cracks.
I use mass medium Epoxy regularly for first coat on green and dry wood bowls it works well as long as the wood does not warp severelywith drying, I use with pieces of root or sawdust for voids or knotholes
Probably not. Varnish is made to use in layers, preferably thin. I suppose if you applied very very thin layers over and over, it will do as well as anything else, but a smooth surface is, by far, the most likely candidate to receive a long lasting coat from this varnish, and a good varnish at that.
I used MAS epoxy to fiberglass a cedar strip kayak. After 10 years I have small spider cracks all over the top that go right through the fiberglass -- Anyone know why?
I believe the tensile strength of the product may be subject to cracks as a result of the expansion and contraction of the wood through the seasons, especially if the craft has a little fiberglass membrane to keep it rigid...such as matting. I love this MAS product and have spent several thousand dollars on MAS products because of the excellent results I have had. 10 years is not to shabby in my opinion.
hello I was wondering if the slow epoxy can work with the medium hardner?
I'm not sure what you mean by slow epoxy..Do you mean low viscosity? If you mean MAS low viscosity, yes it will work..< a href="http://www.jamestowndistributors.com/userportal/show_product.do?pid=3440&familyName=MAS+Low+Viscosity+Epoxy+Resin" target="_blank">http://www.jamestowndistributors.com/userportal/show_product.do?pid=3440&familyName=MAS+Low+Viscosity+Epoxy+Resin< /a>
"Excellent customer service!"
The product is what it is......it is hardener and is messy but very effective. I am taking this survey because the customer service was outstanding!! The fellow (and i wish i could remember his name had a sense of humor which lightened the situation). If you have his name, thank him for an outstanding job!Kurt Humm
crystal lake, Illinois
I'm now working on building my fourth boat using MAS epoxy. The two CLC kayaks from 2000 are still going strong and the Beachpea I just finished looks and sails great. I used the MAS on a set of 8' Pete Culler oars as well as using it to repair my 60 year old Thistle. I've never had an epoxy joint fail.