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MAS Epoxies Slow Hardener
$29.53In Stock
MAS Epoxy Slow  Hardener Gallon size
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MAS Epoxies Slow Hardener Customer Questions and Answers

8 of 8 Questions

Question

How is MAS for woodworking? Wooden chair repair? I have only used System 3.

Asked on 12/10/2015 by JUDD FULLER

Top Answer

I have used MAS epoxies several times including building an interior within a 33' captains gig, cabinets, half bulkheads, tabbing support members, etc. and as well built a cedar strip daysailer .....all with the slow hardener. I found it a great system and the slow hardener gives extended layup and clamping time without amine blush that requires wash downs...

Answered on 12/11/2015 by ERIC ZEIKEL
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Answer

I usually just pour into 1oz (30ml) calibrated cups, for amounts anywhere from 6 ml up. For smaller amounts I just use a thin stick and count drops.

Answered on 12/11/2015 by RICHARD LENG

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Thanks. I may switch to MAS.

Answered on 12/11/2015 by JUDD FULLER

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It'll bind any wood rather permanently. I like MAS best, of all the epoxies, because it won't blush, even when used in cold rooms. I don't know if WEST blushes or not, but I'm certain MAS doesn't, so that's the brand I've stayed with.

Answered on 12/10/2015 by BRAD KURLANCHEEK

Answer

I would say it would work well as long as you are going to be abled to tuen the chair so the epoxy does not run befoe it thickens. I used it on wooden boat construction and small parts construction and it worked well. I always worked in te,peratures at 70 or above. If it is colder than that i feel the time to thicken might get excessive.

Answered on 12/10/2015 by John DeCarli

Answer

I use the low viscosity MAS epoxy which penetrates the wood very well. It dries clear and is quite strong. I have filled screw holes that have been stripped and then drilled the epoxy for a new screw. This has worked very well for me.

Answered on 12/15/2015 by DANIEL ARAGONA

Answer

I have found MAS Epoxy to be excellent for all kinds of woodwork. It hardens clear with no residue and is relatively tolerant of measuring inaccuracies. For use as an adhesive on wood I would also use some silica thickener. Apply a thin amount of un-thickend epoxy first to the surfaces to be glued, then thicken the mix to a peanut butter consistency and apply some of this as a gap filler, then clamp the parts together. Cure time will depend on the type of hardener you used (fast or slow) and the temperature.

Answered on 12/11/2015 by RICHARD LENG

Answer

Thanks both of you

Answered on 12/10/2015 by JUDD FULLER

Answer

Thanks. Yeah I do use thickener. Comment appreciated. Esp mixing tolerances. How do you mix it. Currently I use the pumps.

Answered on 12/11/2015 by JUDD FULLER
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Question

What is the minimum temperature I can use the Mas Epoxy with slow hardener?

Asked on 03/19/2012 by BILL MCINERNEY

Top Answer

Bill, I've used MAS epoxy for over 15 years and would never change. I'm not sure what the label says, but I set the thermostat in my barn at 60 and it's hard the following morning. I turn the furnace off at that point and have had no problem with final cure.

Answered on 03/21/2012 by THORNTON CODY
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Answer

I used the slow hardener during the fall in Ohio and didn't have any problems as long as the temp was at least 60 degrees F.

Answered on 03/20/2012 by TIMOTHY HILTNER

Answer

don't know what the min is; i've used it without problems when the temp in the work room was in the 40s, but never below; i recommend keeping the resin and hardener in a room temperature room for long term storage; you may also want to mix the hardener and resin in the warm room first, and then take the batch you've mixed to the cold room for application

Answered on 03/20/2012 by BRAD KURLANCHEEK

Answer

I have not used MAS epoxy under about 50 degrees. It cures more slowly as ot gets cooler, also, the resin gets thicker as it get colder. The thick resin can be hard to measure with thepumps and accurate measurement is very important, I worked in a shop that would be very cool when I arrived and would warm the resin in the gallon container with a heat gun.A tub of hot water would also work. We then kept the kayaks we were working on warmer with lamps placed under the boat. If you are using epoxy to seal a surface as we used it as a water barrier and base for varnishing on the kayaks it is best to either keep the boat at a constant temperature orget it warm and let it slowly cool as the epoxy hardens. This prevents outgassing which forms small bubbles in the epoxy surface. Outgassing happens whhen the wood warms and gasses in the wood expand and get relased from the wood but get trapped in the hardening epoxy.I hope this helps Gary

Answered on 03/20/2012 by RICHARD A WIESEN

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I just checked the MAS website . they say that 45degrees is adequate for bonding. 55 to 60 degrees for clear coating Gary

Answered on 03/20/2012 by RICHARD A WIESEN

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You don't want it to freeze but otherwise you should be safe. The cooler the temp, the longer the curing process. Tom

Answered on 03/20/2012 by THOMAS PALMER
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Question

I'm looking for an alternative to devcon 2 ton epoxy. I use the epoxy to coat wooden fishing plugs that I make. The Devcon is giving me fits with bubbles. What would you recommend? Richard

Asked on 03/25/2014 by Richard Laurie

Top Answer

Thank you Nick

Answered on 03/28/2014 by Richard Laurie
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Answer

Richard I've never used devcon 2 ton epoxy, but I've built a cedar strip canoe and two cedar strip kayaks and with the two kayaks I used Mas epoxy with slow hardener. I found it much to my liking and will definitely use it again on any future projects. I've tried other epoxies and like the Mas the best. Good luck with your fishing plugs!

Answered on 03/26/2014 by GARY HOLSTAD

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MAS works well but your problem is out gassing. That happens if you have a hot day as the wood heats it gasses. After the first 2 coats it should stop. Is be willing to discuss it at area code 520 cell 7848460

Answered on 03/25/2014 by CHARLES SMITH

Answer

It could be that the viscosity is too high and you might be better off with something thinner MAS or WEST are both pretty thin. If you have access to a vacuum pump you could try degassing the Devcon after mixing and before applying

Answered on 03/26/2014 by NICK GREY

Answer

Thank you Gary for you insight

Answered on 03/26/2014 by Richard Laurie
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Question

how long is the working time with the slow hardener?

Asked on 04/20/2016 by charles rawlins

Top Answer

It's been a couple of years but I would say that at least 30-45 minutes obviously depending on ambient temperature. For example I would work one half of a 15' strip built daysailer at a time with the appropriate volume of mix at 60-70F. Best to coat when mix is fresh and flowing well rather than "push" the limits of working time.....I have been very pleased with the results on 3 different projects ....

Answered on 04/20/2016 by ERIC ZEIKEL
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Answer

You typically have 30 minutes all temperature dependent. I live in Texas and even in the dead of summer I can work at least 20 minutes before it kicks. This is a product I have worked with for years and it is very dependable

Answered on 04/20/2016 by LARRY BLACK

Answer

It depends greatly on the temperature and the size of the batch. At 50 deg's it could be up to an hour or more. At 90 deg's it could start kicking in 1/2 hour. The bigger the batch, the more heat it will generate, speeding the cure.

Answered on 04/21/2016 by JAN THIBODEAU
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Question

would this product be good for a deck that is immediately sitting above a Garage as extra strength?

Asked on 09/09/2011 by Silverio M

Top Answer

MAS epoxy is a great waterproof protection but does not provide any ultraviolet protection so you would still need to add a uv coating or the epoxy will break down. I don't think you will get any added strength, only added waterproofing.

Answered on 09/13/2011 by THOMAS PALMER
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I used the product in several coats over fiberglass to finish a kayak. Can't say whether it would be best for your application.

Answered on 09/13/2011 by JOE HUSEONICA

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Silverio, While MAS Slow Epoxy Hardener is an excellent waterproofing agent, and certainly would be durable as a deck surface, it may be a bit slippery when it gets wet. You may wish to sprinkle dry sand onto the epoxy immediately after brushing or rolling it on to control the slippery condition.

Answered on 09/13/2011 by ALAN BAMBINA
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Question

cure time of epoxy to varnish?

Asked on 11/24/2016 by Undisclosed

Top Answer

Sorry, didn't use varnish, just Interlux Brightsides one part polyurethane. We took two days of prep time before painting --- sanding and filling and sanding.

Answered on 11/24/2016 by Dick Dowdell
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Answer

Didn't take note of this but it wasn't all that long. The epoxy cured well, evenly, no problems

Answered on 11/24/2016 by ROGER LARSEN
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Question

Can I add white color of some type to the slow set epoxy?

Asked on 03/29/2013 by JohnGalt J

Top Answer

It will depend on the chemical content of the additive you are using. I would suggest mixing a "1 pump" batch of epoxy, put in your additive and use to glue two pieces of scrap wood. If they bond and hold then you have your answer.

Answered on 03/29/2013 by JOE HUSEONICA
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Question

what size hardner is needed with a gallon MAS?

Asked on 10/06/2012 by Undisclosed

Top Answer

MAS is a 2:1 mix ratio so you will need 1/2 a gallon of hardener to a gallon of resin, thanks.

Answered on 10/08/2012 by Kerry Souza
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