EZ-84 Epoxy

X30 2-part foam

General Description

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, E-Z 84 is equivalent to Safe-T-Poxy II 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.

Velocity Use

EZ-84 is the primary structural epoxy for the Velocity kit.

Product Description

From the Aircraft Spruce website:  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, E-Z 84 is equivalent to Safe-T-Poxy II 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.

Product Specifications

From the Manufacturer's website:  

colspan=4|* Viscosity may vary +/- 10% colspan=4|* Post Cure for 2 hrs. @ 150F

E-Z POXY TECHNICAL DATA
E-Z POXY RESIN SYSTEMS FROM COMPOSITE POLYMER DESIGN
E-Z 10 Epoxy Resin		E-Z 84 Aromatic Amine Hardener
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	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

See Tap plastic's product website.

Packaging Weights

Kit Size	Approx. Foamed Vol. (Cu.Ft.)	Weight (Lbs.)
1 Quart Kit (1 Pt.. ea. component)	1-1/4	3
2 Quart Kit (1 Gal. ea. component)	2-1/2	6
2 Gallon Kit (1 Gal. ea. component)	10	22
10 Gallon Kit (5 Gal. ea. component)	50	110

Directions for Use

Estimating Volume Requirements
Determine cubic feet (volume) needed to fill area with ‘X-30’ Foam by using this formula:
length x width x height = volume
Example: A rectangle (or square), such as a box, measuring 18ʺ x 24ʺ x 36ʺ = 15,552 cubic inches.
One cubic foot (12ʺ x 12ʺ x 12ʺ) contains 1728 cubic inches.
(15,552 divided by 1728 equals 9 cubic feet)
To determine volume in an irregular area, fill with water (or other measurable substance) to measure gallons needed. Convert determined gallons to cubic feet (71⁄2 gallons per cubic foot) and divide number of gallons in area by 71⁄2 to establish cubic foot volume needed. Area to be foamed must be completely dry before filling with ‘X-30’ Foam.

Measure
Stir or shake the contents of ‘X-30’ Foam, both Part ‘A’ and Part ‘B’ thoroughly.  Measure equally Part ‘A’ and Part ‘B’ by volume.  Use individual containers (with graduated markings) for measuring each component.
Mix
Use a mixing container larger than the combined ingredients of ‘A’ and ‘B’ to allow room for vigorous mixing.  Mix thoroughly until material is free of streaks.  Pour immediately as foaming action will be rapid.  Thorough mixing of these components is essential to achieve a good quality foam of uniform cell structure.
Manual Mixing
A small volume (up to a pint of combined ingredients, ‘A’ and ‘B’) can be mixed by hand.  Use a spatula or a flat stir stick in a straightsided container.  Before pouring, mix combined components swiftly and thoroughly until the mass is homogeneous.
Mechanical Mixing
For large batches (1/2 gallon and up), components must be blended using a high-speed mixer with a suitable size agitator like TAP’s Squirrel Mixer.  Dip agitator to bottom of mixing container and start motor.  Mix 15 to 20 seconds.  Moving along bottom, sides, center, and top of the mass in that order.  Pour before foaming starts.  It may be helpful to chill components separately to 50 or 60°F before mixing to extend available mixing time.  Note: Chilling can reduce the yield.  Large batches should be mixed by someone who is experienced in the use of foam.
Pour
Pour measured and mixed ‘X-30’ Foam into a contained (but factors, however, such as: bulk, configuration of the cavity, and temperature which affect density and amount of materials required.  If the foam is allowed to expand freely without restrictions, a density of two pounds per cubic foot will be obtained.  A higher density can be obtained if the pour of foam is several cubic feet or is restricted in a closed mold.  (See Caution 1 in the right column.)  Foaming in confined cavities usually results in higher foam density and less volume.  Elevated temperature has the effect of decreasing the density and increasing the volume.

Safety and Handling

Here are the manufacturer's Material Safety Data Sheets.
Media:MSDS_TAP_X30A.pdf
Media:MSDS_TAP_X30B.pdf