Home / Epoxy and Adhesives / Epoxy Resin

MAS Medium Epoxy Hardener

$50.80Temporarily UnavailableSee Product Details

Home / Epoxy and Adhesives / Epoxy Resin

MAS

MAS Medium Epoxy Hardener

$50.80Temporarily UnavailableSee Product Details

Options

Quantity

1 qt contains 1 qt

This item is eligible for free shipping
This item will require additional time to ship

Product Details Info & Guides Data Sheets

Product Details

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.

Available in Pint, Quart, Half Gallon, Gallon, 4 Gallon, and 5 Gallon sizes.

Info & Guides

Technical Specifications

Viscosity at 77 degrees F: 200 cp unmixed, 410 cp mixed

Specific Gravity at 77 degrees F: .0998

Flash Point (closed cup): 234 degrees F

Mix Ratio: 2:1 Resin to Hardener

Mixed Viscosity at 77 degrees F: 400-500 cps

Pot Life at 77 degrees F: 12 minutes

Thin Film Set Time at 77 degrees F: 3 hours

Full Cure: 5 days

Peak Exotherm at 77 degrees: 340

Peak Exotherm Time: 15 minutes

Performance

Tensile Strength: 7,350 psi

Tensile Modulus: 395,000 psi

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.

Data Sheets

Non-Blushing 2:1 Epoxy System Tech Data

VIEW

Reviews

Rating Snapshot

Select a row below to filter reviews.

3 reviews with 5 stars.

0 reviews with 4 stars.

0 reviews with 3 stars.

0 reviews with 2 stars.

0 reviews with 1 star.

Overall Rating

5.0

Review this Product

Select to rate the item with 1 star. This action will open submission form.

Select to rate the item with 2 stars. This action will open submission form.

Select to rate the item with 3 stars. This action will open submission form.

Select to rate the item with 4 stars. This action will open submission form.

Select to rate the item with 5 stars. This action will open submission form.

Adding a review will require a valid email for verification

Filter Reviews

1 to 2 of 3 Reviews

1 – 2 of 3 Reviews

Delaware

5 out of 5 stars.

MAS Epoxy the best

4 years ago

GREAT product easy to work with building a hard top for my boat !

Helpful?

Cape Cod

5 out of 5 stars.

MAS Epoxy

13 years ago

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.

Helpful?

1 Ratings-Only Review

Questions

1 - 6 of 6 Questions

Q: I am new to all this can someone explain what I need to get and mix for like little projects. Like keychains dominos just arts and crafts please and thank you

a year ago

1 Answer

A: Hey Tabatha! A lot of folks use UV resin for tiny crafts like keychains. If you want something a little more versatile and stronger, TotalBoat High Performance resin is great for that.

a year ago

Helpful?

Q: Would this part B 2:1 hardener work with a part A 2:1 deep pour epoxy for thicker applications up to 2 inches?

2 years ago

2 Answers

A: Quit sending these to me. I have a paying job. Bill Vines

2 years ago

Helpful?

Q: do I also need a resin with the hardener? at what proportion do you mix the 2

9 years ago

6 Answers

A: Yes you will need a hardener. mix ratio 2:1 2 resin : 1 hardener.

9 years ago

Helpful?

Q: Would this product work well to fill cracks in wood turned objects?

11 years ago

5 Answers

A: 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.

11 years ago

Helpful?

Q: 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?

12 years ago

1 Answer

A: 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.

11 years ago

Helpful?

Q: hello I was wondering if the slow epoxy can work with the medium hardner?

13 years ago

1 Answer

A: 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=quotehttp://www.jamestowndistributors.com/userportal/show_product.do?pid=3440&familyName=MAS+Low+Viscosity+Epoxy+Resinquote target=quote_blankquote>http://www.jamestowndistributors.com/userportal/show_product.do?pid=3440&familyName=MAS+Low+Viscosity+Epoxy+Resin< /a>

13 years ago

Helpful?