E-Z Poxy Epoxy Laminating Systems

From $96.25 to $1397.00
Description Part No. Price Buy
E-Z Poxy 1-1/2 gal. kit EZ 10 Resin, EZ 83 Hardner
8 lbs. resin, 3.5 lbs hardener
E-Z Poxy 5 gal. kit EZ 10 resin, EZ 83 Hardner
40 lbs. resin, 17.6 lbs. hardener
E-Z Poxy 1-1/2 qt. kit EZ 10 Resin, EZ 83 Hardner
E-Z Poxy 1 gal. resin (EZ-10) 8 lbs
E-Z Poxy 5 gal. resin (EZ-10) 40 lbs
E-Z Poxy 1/2 gal. hardener (EZ-83) 3.5 lbs
E-Z Poxy 2-1/2 gal. hardener (EZ-83) 17.6 lbs
Subtotal $0.00
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In early 1996, Composite Design Co. developed E-Z Poxy to provide a replacement epoxy system for Epolite (Safe-T-Poxy) which is no longer produced by Hexcel. The E-Z Poxy series of laminating systems utilizes one resin and your choice of three hardeners for varying pot life and viscosity requirements. The E-Z Poxy systems offer the same handling and physical properties as the discontinued Epolite systems including ease of use, long pot life, rapid cure for demold or process continuation, and superior room temperature curing properties. Excellent for use in sport aviation, marine, and industrial applications.
E-Z 83 hardener is equivalent to Safe-T-Poxy standard hardener, and E-Z 87 is equivalent to Safe-T-Poxy slow hardener. E-Z Poxy products should not be mixed with materials produced by other epoxy manufacturers.
E-Z Poxy systems provide excellent room temperature curing systems for hand layup of composite parts and tooling. The systems are designed to provide ample working time with the varied pot life options while providing a rapid finish cure. Post curing these systems will increase their physical properties as designated in the above data, however, post cure is not required.

Containers are filled by weight. Cans may be short filled.
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -


E-Z 10 Epoxy Resin
E-Z 84 Aromatic Amine Hardener (No Longer Available)
E-Z 83 Aromatic Amine Hardener
E-Z 87 Aromatic Amin Hardener
E-Z 10 Resin (Viscosity 1500 cps @ 77F) with:
Hardener EZ 83 EZ 84 (NLA) EZ 87
Mixed Properties:
Mixed Viscosity cps @ 77F* 1300 800 1500
Viscosity Hardener cps @ 77F* 410 140 830
Pot Life @ 77F 2 hours 2 hours 5 hours
Tack Free @ 77F 4 hours 8 hours 8 hours
Cure Time @ 77F 24 hours 3 days 3 days
Mix Ratio by Volume 100/47 100/47 100/47
Mix Ratio by Weight 100/44 100/44 100/44
Physical Properties Tg (F):
R/T 151 151 142
P/C* 196 196 196
Elongation % 3.5 3.5 3.9
Specific Gravity 1.14 1.13 1.14
Linear Shrinkage @ 23C (4 days %) .10 .10 .10
Tensile Strength PSI:
R/T 8,200 8,100 8,400
P/C 10,000 10,000 10,000
Tensile Modulus (PSI x 10 -5) 4.8 4.2 4.0
* Viscosity may vary +/- 10%
* Post Cure for 2 hrs. @ 150F


Lids were slightly loose on each container, so that the cans felt sticky.

Jerome P Verified Purchase


June 7, 2023

I like this epoxy, especially the low odor and well-behaved cure. BTW, you can use the convenient West pumps with EZ Poxy as follows. My measurements showed that the West large pump delivers about 0.66 fl. oz. of resin per full stroke. The 207/209 hardener pump delivers about 0.22 fl. oz. per full stroke mixing this with the resin squirt yields a total of about 0.88 fl. oz., with a resin to hardener volume ratio of about 2.95. The 205/206 pump delivers about 0.12 fl. oz. of hardener per full stroke mixing this with the resin squirt yields a total of about 0.78 fl. oz., with a resin to hardener volume ratio of about 5.45. The recommended EZ Poxy resin/hardener volume ratio is 100/47 = 2.13. Two strokes of the resin pump and three strokes of the hardener pump yields a mix ratio of 1.32/0.66= 2.00, which is close to the recommended 2.13. If you want to be closer to the recommended ratio, use 2.1 strokes of the resin pump to 3 strokes of the hardener pump, which yields a volume ratio of 1.39/0.66= 2.11.

Larry P
April 3, 2023

Seems to be an excellent replacement for the old Saf-T-Poxy I used years ago.

Bill F Verified Purchase


June 2, 2022

This is a great prodcut!

Bobby B Verified Purchase


November 5, 2021

Press R Verified Purchase


June 22, 2021

I was disappointed when the web stated it was out of stock, but I received the order a couple of days later anyway. EZ-84, now 83, IIRC, is what 95% of my Velocity is constructed with.

Christopher B
November 5, 2020

easy to use. Ive been using it in temperatures just over 90 degrees, the pot life is a little less than two hours at this temp but I still have lots of time to get everything laid up how I want to. The cure time at this temp is less than 24 hours.

July 2, 2020

Awesome product. works well on my aircraft project.

Joseph A
October 10, 2019

Awesome Epoxy for the Aircraft I am building. Have to know your amounts and weights.

August 12, 2019

Perfect for student projects.

Edward B
November 13, 2018


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: How much coverage area does the 5 gallon kit cover for the 4533 Fiberglass cloth that you sell?

This should cover approximately 184 sq yards.

Q: What type of thinner do you use for clean-up?

A common solvent for cleaning up un-cured epoxy is Acetone. We also offer a non-hazardous cleaner called Replacetone. It is offered in quarts, 01-08823, & gallons, 01-08834.

Q: What proportion of hardener to resin should I use with the E-Z Poxy Epoxy Laminating System?

Per the information on the Specifications Tab, the ratio is 100/44 by weight, or you can also measure it 100/47 by volume.

Q: What epoxy would you suggest for putting on 7781 e-glass satin weave 9oz?

Any laminating epoxy can be used with this, and any fiberglass cloth we offer. If you are building an aircraft, you will want to use whatever the designer, or kit manufacturer suggests.

Q: I used the Safte-T epoxy years ago and loved the amber tint it put on my wood strip boats. Does it's replacement, E-Z Poxy, have the same amber coloration?

Yes, the resin is clear, but the hardener is amber color, and gets darker as is gets older.

Q: Is E-Z Poxy 83 acceptable for use on a composite fuel tank? Is it resistant to ethanol?

Yes, our E-Z Poxy line of products are the most fuel resistant epoxy systems we offer. E-Z Poxy has a long history of use in the aviation industry, being originally developed for the Long-EZ kit aircraft. Of the Hardeners, E-Z 83B, 87B and 92B are almost identical with only a slight variation in accelerator to help vary gel time. This series of hardener has undergone long term fuel resistance studies, being exposed to diesel (containing 5% bio diesel), gasoline (containing 10% ethanol) and strain solvents (50/50 isopropyl/xylene blend). The differences in fuel resistance between these 3 should be negligible. E-Z 10A/83B is a great option for integral fuel tanks.

Q: Can the E-Z Poxy 10/83 1.5 gal. kit be shipped by standard shipping or is it hazardous?

It can ship via ground ORMD without haz mat fees. It is hazardous for air shipping.

Q: Can you tell me if the 01-00245 EZ EPOXY EZ10-1G RESIN is non-hazardous for air shipping?

Yes, this is considered hazmat material for air shipping.

Q: Do you offer resin pumps that fit the EZ-Poxy resin and hardener cans?

The West system pumps (part # 01-00318) will fit but they ratios may not be correct. If you just want to pump from the can they will work.

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