MAS Epoxy low viscosity resin contains a superior blend of low molecular weight epoxy resin and reactive dilutents, resulting in an easy-flowing reliable system with low drip and no blush.
Use for barrier coatings, laminating, and bonding. Low viscosity epoxy provides complete wet out of fiber reinforced fabrics, reducing the potential for voids and other imperfections. Modify with fillers such as wood powder of colloidal silica for filling and fairing compound applications.
MAS epoxy is typically used at room temperatures using your choice of hardeners (MAS recommends using their own Fast, Medium or Slow) in a 2 parts resin to 1 part hardener mix ratio. This versatile resin system can be used in a wide variety of applications, including boat hulls and structures, as well as laminating and bonding of nearly all materials.
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Amine blush is a waxy layer that forms during the cure process of most epoxy resins. No blush is critical if you intend to apply additional epoxy or varnish over it. MAS epoxy won't blush as long as it is applied in anything under 98% humidity.
Technical Specifications
Specific Gravity at 77 degrees F: 1.08 - 1.13
Density (lb/gal) at 77 degrees F: 9.6
Flash Point (closed cap): 200 degrees F
Percent Reactive Solids: 100
Mixed Viscosity with MAS Hardener: 550-650 cps
Mix Ratio: 2:1 Resin to Hardener
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.
BRAND:
MAS
Material:
Epoxy
Resin Type:
Resins
Usage:
Laminating
Questions & Answers about MAS Low Viscosity Epoxy Resin:
2012-12-29A shopper asked: in all the page don't say the time of use and cure... ¨Its a mystery for me...
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2013-01-02RICHARD SIMONDS: Look on the container of either the resin or the hardener.
2013-01-02TED DWYER: I have used it a lot in central Florida in the summer. I never timed it but I figure it gives about 15 minutes before it begins to turn. I really like using it.
2013-01-03ALLISON PASCHKE: All epoxies take longer to cure if the temperature is lower, and they cure much faster if mixed in larger quantities. MAS also makes different hardeners which cure at different speeds and are better for certain situations. You can contact MAS directly for detailed technical information. The number should be on the resin container or online.
2013-01-03THOMAS PALMER: Curing time is relative to the air temp and humidity. There is no fixed timetable. You will get familiar with the timing as you use it. If the temp is in the 70s you will have around an hour to position pieces and have maybe 24 hours for a full cure. These are all approximate times.
2012-11-23ALAN PAK asked: is this a low voc?
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2012-11-26Nathan Fournier: An entropy resin is definitely the way to go with low everything and it works just as well, the part # is "ENT-11CLR005", thank you.
Nathan
JD Store
(401)253-3840 ex130
store@jamestowndistributors.com
2012-07-26A shopper asked: I am looking for a clear resin that will make beaded drops on plastic monofilamnet. It needs to have a fast cure time. What do you recommend?
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2012-07-29ALLISON PASCHKE: Low viscosity would run off the monofilament faster than flag resin. I would use flag with a fast hardener. I've created clear droplets on pins myself by stringing clear glass beads (you could tack them into position with superglue) and then putting on the resin which causes the beads to virtually disappear. Otherwise the resin just runs off.
2012-07-29RICHARD A WIESEN: Can't help you. My application was as a sealant for marine plywood and for bonding fiberglass matting on it.
Sorry
2012-07-30JON BEHM: I would NOT recommend the MAS low viscousity for this project.
2011-12-04A shopper asked: What is the lowest temp that the product can be used in?
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2011-12-05SCOTT HILLMAN: The MAS site states the following:
"For clear coating, we like to see the resin remain over 55 to 60 F. For bonding, anything over 45 F is adequate."
2011-12-05JEFF MATHERLY: I have used it a few times in the last week at 45 F. It behaves very differently at this temp compared to usual 60-80 degrees ... but it works. Use faster hardener (I usually do almost all slow hardener but was using half-fast, half-slow this week and it still takes quite a while to cure.) And keep in mind that the viscosity is going to be much higher at low temps, requiring more effort to wet out 'glass, fill small cracks, etc. Keep your MAS components indoors until you need them, if you can.
2011-12-05BRAD KURLANCHEEK: my workshop is typically in the 40s and 50s, fahrenheit; it'll cure, in those temps, but it just takes longer - a couple of days at most; however, before mixing up the epoxy, i'll store the containers in a room temperature room first; otherwise, the goop, if stored in the 40s/50s workshop, comes out too thick for the pumps to work right.
2011-12-06MIKE PHELPS: I used MAS LV Epoxy Resin on a project in the spring, when the temperature was probably in the 50's, and it cured fine. I was working sporadically, and it had lots of time to harden before i got back for the next step. It does take longer to cure at low temperatures.
I built a boat at the Woodenboat School where we worked every day on the baots, and needed each days work to be well cured before the next day. When it was cold, we just put some heat lamps around the work area to make sure it was cured.
So I don't have an exact answer, but I don't think the job will be ruined if it is too cold, it will just take a long time to cure, and if you're in a hurry, you can add some heat to speed things up.
2011-12-06SIMON GUNNELL: I did a small repair last week end at about 55 degrees and dropping in my unheated garage and hung my drop light about 1 foot from the job and the medium hardener mix kicked normally. Turned off the light after a couple hours and job was sandable next day. Temps dropped to about 40 overnight. Don't think I would risk doing a bigger job without some way of keeping the room above 50 degrees F. I also keep my resin in my basement where the temp is always over 60 .
2011-09-03A shopper asked: I want to apply an epoxy barrier coat to the bottom of my 31' sailboat and MAS will be my product of choice. Any idea of how much I'll need for 3-4 coats? How are the previous coats prepped prior to the next coat?
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2011-09-06RICHARD SIMONDS: Questions:
1. What is the boat hull made of---wood , fibreglass,steel ???
2.What is the overall goal in doing this ?
Not knowing the above I would guess that is\t wood be difficult to get a good finish by brusing coats of MAS without applying it to a 6oz. fibrglass cloth. Getting a cloth in place on a surface other than wood will be difficult.
Turning the boat upside down would be usefull.
MAS has a good web site plus a telephone service that you can use effectively.
Dick Simonds
509 682 1500
2011-09-06ALLISON PASCHKE: I'm not sure how to calculate the coats, but you could keep track of what one coat used and then calculate the other coats. Sand between coats with around 300 or 400 grit.
2011-09-07DALE QUAKENBUSH: I used MAS LVER on a wood kit boat and on some repairs. So as a barrier coat I am not sure on the initial prep. Between coats I just sanded to get earlyer coats smothe with 80g paper. I did 4-5 coats of epoxy .2 of primer and 3 of brightsides. I sand to 220 g on the finish coats. The brightsides blistered to the primer below the water line after 45 days in the water but it is not a bottom paint and the boat is usually only in the water for a day of 2 at a time now as it is my tender. I built her in 2008.
2011-09-07ROBERT DAVIDSON: I'm probably not the best source for calculating how much epoxy you will need, but if memory serves me correctly, I used about 1/2 gallon to do the hull. I applied 3 coats to it according to the instructions of the designer of the boat I built (an 18 foot whitehall style hull): Applied with a 3"-4" long roller. After applying the first coat, go back over any dry spots, then let the resin dry thoroughly before lightly sanding with 80 grit paper. Then apply the 2nd and third coats (and 4th if desired), one over the other without sanding in between, allowing the second coat to become tacky (but not dry) before applying the third coat. As long as you apply an additional coat while the previous coat is still tacky, you won't have to sand between coats. But, if you let a coat dry completely, you should sand that coat before applying another coat. Once all coats are applied, let thoroughly dry, then sand with 80 grit paper, then finish sand with 120 or 150 grit sandpaper. (Re-coat any spots that appear thin or oversanded.)
I hope this helps. I really liked the MAS epoxy, much better than the two other brands that I had used previously.
If you'd like to see my boat being tested out with oars and motor, I have a video on YouTube. You can find it by searching for "Sea Dog Trials".
2011-09-07MICHAEL KELLEY: See the MAS website FAQ section. My estimate of coverage would be a minimum of +30 yd yards per gallon of resin/ hardner mix (based on the MAS coverage chart of 25 sq yds when using 6oz fiberglass cloth.) You may get more than that. If you reapply when the epoxy has just reached the state of curing where is is barely tacky (cotton ball just sticks) no prep required...most likely you will want the epoxy to set up and then sand and drips/lumps with a random orbital sander with 60 - 100 grit paper. The MAs website provides very good information on the process. The very short brissle WEST rollers work very well for getting an even coat.
Building a small pram I use the epoxy to bond and fillet the boards. I also use it to bond the fiberglass cloth where used and then coat the entire boat to give the wood a seal against water absorption.
Was this a gift?:
No
12/9/2011
(1 of 1 customers found this review helpful)
4.0
I recommend and will use again
By Tom
from Kansas City
About Me Advanced
Pros
Easy to Use
Protects Well
Weather Proof
Cons
None for my application
Best Uses
Boat building
Outdoor
Quick Fix
Wood Trim
Comments about MAS Low Viscosity Epoxy Resin:
I recently started a little boat building business called "Hellbender Boat Works". This epoxy sytem is great and easy to work with. It's very clear and lets the wood detail be the focal point. This is the good stuff.
Was this a gift?:
No
4/3/2011
5.0
Excellent, Easy to Use
By Steve - Restharrow Farm & Boatworks
from Fletcher, VT
About Me Advanced
Pros
Easy to Use
Protects Well
Visually Pleasing
Weather Proof
Cons
Best Uses
Outdoor
Wood Trim
Comments about MAS Low Viscosity Epoxy Resin:
I'm on my 3rd small boat, two strip built and one lap strake. This product is easy to use, has excellent technical resources, and very limited smell.
Was this a gift?:
No
9/24/2010
4.0
MAS
By bb
from ny
About Me Casual/ Recreational
Pros
Easy to Use
Cons
Best Uses
Comments about MAS Low Viscosity Epoxy Resin:
An easy product to use - especially w/the pumps
Was this a gift?:
No
8/18/2010
5.0
I WOULD BUY THIS AGAIN
By RAY
from AKRON,IN
About Me Beginner
Pros
Easy to Use
Protects Well
Visually Pleasing
Weather Proof
Cons
Best Uses
Comments about MAS Low Viscosity Epoxy Resin:
EASY YO USE, HOLDS UP WELL
3/3/2010
5.0
Consistant application
By Catman
from WI
About Me Advanced
Pros
Easy to Use
Cons
None
Best Uses
Outdoor
Wood Trim
Comments about MAS Low Viscosity Epoxy Resin:
Provides good wet out on cloth
1/26/2010
(1 of 1 customers found this review helpful)
5.0
Good and Clear
By Paul
from Maryland
About Me Casual/ Recreational
Pros
Easy to Use
Cons
Best Uses
Comments about MAS Low Viscosity Epoxy Resin:
It has always cured glass like clear and I have not had any problems. good for exposed wood that needs more protection then just varnish.
I have always used slow hardener.
12/29/2009
(1 of 1 customers found this review helpful)
5.0
Absolutely the best epoxy on the market
By Herb
from Chattanooga,TN
About Me Advanced
Pros
Easy to Use
Protects Well
Visually Pleasing
Weather Proof
Cons
Best Uses
Indoor
Outdoor
Quick Fix
Wood constpreservation
Wood Trim
Comments about MAS Low Viscosity Epoxy Resin:
Strip kayak construction.Have used other brands and believe MAS is easier to use with superior results.Best wet out of any.NO amine blush.Best support in the industry-just call MAS if you have a question and you are guaranteed to talk to a knowledgeable rep.
11/4/2009
(1 of 1 customers found this review helpful)
5.0
Great versatile epoxy
By Evan G.
from WV
Pros
Easy to Use
Versatile
Visually Pleasing
Cons
Best Uses
Indoor
Outdoor
Quick Fix
Sculpture
Wood Trim
Comments about MAS Low Viscosity Epoxy Resin:
This epoxy is very easy to use and to mix. The pumps make it a breeze and keep you from making too big of a mess. Much easier to stir in a cup then folding together with putty knives. I bought this with the medium hardener, because I thought the low viscosity would be versatile for wood sculpture. I have not use it for fiberglass yet, but i have used it for joining wood together. Not the best for straight gluing without dowels or nails. I just waited until it started to set and thicken up (about 20 minutes with the medium hardner). I suppose I should have gotten the FLAG for that. My mistake, but it does bond extremely well when dried. Also leaves a nice and smooth clear glossy finish. Minimal bubbles with the medium, but still a couple.
8/27/2009
4.0
Epoxy resin
By First timer
from Massachusetts
About Me Beginner
Pros
Easy to Use
Great viscosity
Wets out well
Cons
Best Uses
Comments about MAS Low Viscosity Epoxy Resin:
This is my first fiberglassing experience of any kind. Of course I used the slow hardener being unsure of my skill.
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