Difference between revisions of "EZ-84 Epoxy"

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[[Image:ezpoxy.jpg|right|thumb|X30 2-part foam]]
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[[Image:75_Gal_Epoxy.jpg|thumb|right|300px|7 1/2 gallon EZ Poxy Kit]]
 
== General Description ==
 
== 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.&nbsp;&nbsp;The E-Z Poxy series of laminating systems utilizes one resin and your choice of three hardeners for varying pot life and viscosity requirements.&nbsp;&nbsp;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.&nbsp;&nbsp;Excellent for use in sport aviation, marine, and industrial applications.<br/><br/>
+
EZ84 is a 2-part structural epoxy.&nbsp;&nbsp;The resin is clear in color, and has a tendency to form crystals with age.&nbsp;&nbsp;The crystals can usually be reabsorbed if you immerse the container in very warm water.&nbsp;&nbsp;The hardener is honey colored when new, flowing quite easily, but turns to a dark brown and molasses consistency with age.&nbsp;&nbsp;Old hardener can be made to flow better with carefully applied heat, such as with a paint gun.<br/>
−
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.&nbsp;&nbsp;E-Z Poxy products should not be mixed with materials produced by other epoxy manufacturers.<br/>
 
  
 
== Velocity Use ==
 
== Velocity Use ==
−
EZ-84 is the primary structural epoxy for the Velocity kit.<br/>
+
EZ-84 is the primary structural epoxy for the Velocity kit.&nbsp;&nbsp;All structural glass lay-ups are preformed with this system, such as wings, fuselage, etc.<br/>
 +
 
 +
From the Builder's Manual.&nbsp;&nbsp;"''EZ-Poxy is used in all major lay-ups on foam and all lay-ups of glass to glass.&nbsp;&nbsp;EZ-Poxy hardener is mixed with DER 324 resin at a 44:100 ratio.&nbsp;&nbsp;For lay-ups on foam, a slurry of EZ-Poxy and micro balloons is used.&nbsp;&nbsp;Throughout the construction manual this mixture is referred to as Micro-Slurry.&nbsp;&nbsp;It is also used with milled fiber for structural fillets and structural bonding such as hinge pockets for the speed brake, doors, etc.&nbsp;&nbsp;This epoxy was known as Epolite (2180/2183/2184) and SafetyPoxy in past manuals''."<br/><br/>
 +
You may see references in books and catalogs and videos to Safe-T-Poxy, or Hexcel
 +
Epolite they have been replaced by EZ-Poxy.
  
 
== Product Description ==
 
== Product Description ==
−
From the [http://aircraftspruce.com/catalog/cmpages/x30foam.php Aircraft Spruce] website:&nbsp;&nbsp;This system consists of two components - "X-30" Resin and "X-30" Catalyst.&nbsp;&nbsp;When the resin and catalyst are mixed in equal volumes they expand into a rigid closed-cell foam of 2 pound density. Thorough mixing of the two components is essential.&nbsp;&nbsp;"X-30" Foam expands approximately 40 times its liquid volume.&nbsp;&nbsp;Small-batch mixes are recommended. Cured foams can be easily trimmed, cut and shaped with common woodworking tools.&nbsp;&nbsp;Use toluene or MEK for cleanup.&nbsp;&nbsp;"X-30" Foam contains a highly reactive agent and is classified as a toxic material.&nbsp;&nbsp;It is combustible, a strong skin sensitizer and eye irritant. Avoid contact with the skin.&nbsp;&nbsp;Use rubber gloves when handling.&nbsp;&nbsp;Used for: Flotation, thermal and acoustical insulation reinforcement and miscellaneous void filling. Most small pleasure boats can be made "sink-proof" with approximately two gallons of "X-30".&nbsp;&nbsp;Data sheet available. "X-30" Foam contains a volatile fluorocarbon and should be stored at 70°F. or lower. "X-30" is used on the Osprey II bottom hull, canopy, nose cone, etc., requiring about four gallons of material (two gallons of each).&nbsp;&nbsp;Shelf life at least six months. Users have reported "more than two years shelf life".<br/>
+
From the [http://aircraftspruce.com/catalog/cmpages/ezpoxy.php Aircraft Spruce] website:&nbsp;&nbsp;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.&nbsp;&nbsp;The E-Z Poxy series of laminating systems utilizes one resin and your choice of three hardeners for varying pot life and viscosity requirements.&nbsp;&nbsp;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.&nbsp;&nbsp;Excellent for use in sport aviation, marine, and industrial applications.<br/><br/>
 +
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.&nbsp;&nbsp;E-Z Poxy products should not be mixed with materials produced by other epoxy manufacturers.<br/>
  
 
== Product Specifications ==
 
== Product Specifications ==
−
From the Manufacturer's website:&nbsp;&nbsp;<br/>
+
From the [http://aircraftspruce.com/catalog/cmpages/ezpoxy.php Aircraft Spruce]  website:&nbsp;&nbsp;<br/>
−
 
+
[[Image:ezpoxy.jpg|right|thumb|EZ84 Epoxy]]
 +
[[Image:EZ-84.jpg|right|thumb|EZ84 Epoxy]]
 +
[[Image:DER324.jpg|right|thumb|DER324 Resin]]
 
{| border="1" cellpadding="20" cellspacing="0"
 
{| border="1" cellpadding="20" cellspacing="0"
 +
!colspan="4"|E-Z POXY TECHNICAL DATA
 
|-
 
|-
−
!colspan=4|E-Z POXY TECHNICAL DATA
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!colspan=4|E-Z POXY RESIN SYSTEMS FROM COMPOSITE POLYMER DESIGN
−
|-
 
−
!colspan=2|E-Z POXY RESIN SYSTEMS FROM COMPOSITE POLYMER DESIGN
 
 
|-
 
|-
 
!colspan=2|E-Z 10 Epoxy Resin
 
!colspan=2|E-Z 10 Epoxy Resin
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!colspan=2|E-Z 87 Aromatic Amin Hardener
 
!colspan=2|E-Z 87 Aromatic Amin Hardener
 
|-
 
|-
−
!colspan=4| E-Z 10  Resin (Viscosity 1500 cps @ 77F) with:
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!colspan=4|E-Z 10  Resin (Viscosity 1500 cps @ 77F) with:
 
|-
 
|-
 
|Hardener
 
|Hardener
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|4.0
 
|4.0
 
|-
 
|-
−
colspan=4|* Viscosity may vary +/- 10%
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! colspan="4"|Viscosity may vary +/- 10%
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colspan=4|* Post Cure for 2 hrs. @ 150F
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|-
−
|
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! colspan="4"|Post Cure for 2 hrs. @ 150F
−
|
 
 
|}
 
|}
  
 
 
 
 
−
 
−
 
−
 
−
See Tap plastic's product [http://www.tapplastics.com/shop/product.php?pid=79 website].<br/>
 
−
 
 
== Packaging Weights ==
 
== Packaging Weights ==
−
{| border="1" cellpadding="20" cellspacing="0"
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EZ-84 is typically sold in quarts, half gallon, gallon, and 5 gallon sizes.  [http://www.aircraftspruce.com/catalog/cmpages/ezpoxy.php Aircraft Spruce] currently offers all of these sizes.
 +
{|
 +
|-
 +
!Description
 +
!Part No.
 
|-
 
|-
−
!Kit Size
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|EZ EPOXY EZ10-1G RESIN
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!Approx. Foamed Vol. (Cu.Ft.)
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|01-00245
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!Weight (Lbs.)
 
 
|-
 
|-
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|1 Quart Kit<br/>(1 Pt.. ea. component)
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|EZ EPOXY 5 GALLON RESIN
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|1-1/4
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|01-00246
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|3
 
 
|-
 
|-
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|2 Quart Kit<br/>(1 Gal. ea. component)
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|EZ EPOXY EZ84-1/2G HARDENER
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|2-1/2
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|01-00248
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|6
 
 
|-
 
|-
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|2 Gallon Kit<br/>(1 Gal. ea. component)
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|EZ EPOXY II EZ84-2-1/2G HARDENER
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|10
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|01-00250
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|22
 
 
|-
 
|-
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|10 Gallon Kit<br/>(5 Gal. ea. component)
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|EZ EPOXY II EZ84-5G HARDENER
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|50
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|01-00252
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|110
 
 
|}
 
|}
  
 
== Directions for Use ==
 
== Directions for Use ==
−
'''Estimating Volume Requirements'''<br/>
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[[Image:epoxypump1.jpg|right|thumb|Michael Epoxy Pump]]
−
Determine cubic feet (volume) needed to fill area with ‘X-30’ Foam by using this formula:<br/>
+
[[Image:dispensers.jpg|right|thumb|Metered Dispensers]]
−
length x width x height = volume<br/>
+
Temperature is critical for epoxy chemistry, and is often stored in a hotbox. It's best to maintain the part and the epoxy above 70 degrees Fahrenheit or so (see also post-cure). Measure the needed volume in the appropriate 44:100 ratio (by weight) or 47:100 (by volume). Most people choose to get a ratio pump such as Michael's, though you can get ratio-dispensing jug, or use a high-accuracy scale.
−
Example: A rectangle (or square), such as a box, measuring 18ʺ x 24ʺ x 36ʺ = 15,552 cubic inches.<br/>
 
−
One cubic foot (12ʺ x 12ʺ x 12ʺ) contains 1728 cubic inches.<br/>
 
−
(15,552 divided by 1728 equals 9 cubic feet)<br/>
 
−
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.<br/>
 
  
−
'''Measure'''<br/>
+
Good mixing is critical for epoxy work, but not that difficult. I find it easier to to mix with a tongue depressor with the end cut off square (with a pair of old, dull scissors) so I can scrape the sides and floor of the cup liberally. I typically mix for approximately 30 second to one minute, depending on the volume I've dispensed. I typically wet the target part, and then the lay-up fabric (usually on plastic), and keep the excess in the mixing cup to verify that the proper hardness has been achieved the following day.
−
Stir or shake the contents of ‘X-30’ Foam, both Part ‘A’ and Part ‘B’ thoroughly.&nbsp;&nbsp;Measure equally Part ‘A’ and Part ‘B’ by volume.&nbsp;&nbsp;Use individual containers (with graduated markings) for measuring each component.<br/>
 
−
'''Mix'''<br/>
 
−
Use a mixing container larger than the combined ingredients of ‘A’ and ‘B’ to allow room for vigorous mixing.&nbsp;&nbsp;Mix thoroughly until material is free of streaks.&nbsp;&nbsp;Pour immediately as foaming action will be rapid.&nbsp;&nbsp;Thorough mixing of these components is essential to achieve a good quality foam of uniform cell structure.<br/>
 
−
'''Manual Mixing'''<br/>
 
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A small volume (up to a pint of combined ingredients, ‘A’ and ‘B’) can be mixed by hand.&nbsp;&nbsp;Use a spatula or a flat stir stick in a straightsided container.&nbsp;&nbsp;Before pouring, mix combined components swiftly and thoroughly until the mass is homogeneous.<br/>
 
−
'''Mechanical Mixing'''<br/>
 
−
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.&nbsp;&nbsp;Dip agitator to bottom of mixing container and start motor.&nbsp;&nbsp;Mix 15 to 20 seconds.&nbsp;&nbsp;Moving along bottom, sides, center, and top of the mass in that order.&nbsp;&nbsp;Pour before foaming starts.&nbsp;&nbsp;It may be helpful to chill components separately to 50 or 60°F before mixing to extend available mixing time.&nbsp;&nbsp;Note: Chilling can reduce the yield.&nbsp;&nbsp;Large batches should be mixed by someone who is experienced in the use of foam.<br/>
 
−
'''Pour'''<br/>
 
−
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.&nbsp;&nbsp;If the foam is allowed to expand freely without restrictions, a density of two pounds per cubic foot will be obtained.&nbsp;&nbsp;A higher density can be obtained if the pour of foam is several cubic feet or is restricted in a closed mold.&nbsp;&nbsp;(See Caution 1 in the right column.)&nbsp;&nbsp;Foaming in confined cavities usually results in higher foam density and less volume.&nbsp;&nbsp;Elevated temperature has the effect of decreasing the density and increasing the volume.<br/>
 
  
 
== Safety and Handling ==
 
== Safety and Handling ==
 
Here are the manufacturer's Material Safety Data Sheets.<br/>
 
Here are the manufacturer's Material Safety Data Sheets.<br/>
−
[[Media:MSDS_TAP_X30A.pdf]]<br/>
+
[[Media:EZ-83_84_87.pdf]]
−
[[Media:MSDS_TAP_X30B.pdf]]<br/>
 

Latest revision as of 18:04, 20 August 2010

7 1/2 gallon EZ Poxy Kit

General Description

EZ84 is a 2-part structural epoxy.  The resin is clear in color, and has a tendency to form crystals with age.  The crystals can usually be reabsorbed if you immerse the container in very warm water.  The hardener is honey colored when new, flowing quite easily, but turns to a dark brown and molasses consistency with age.  Old hardener can be made to flow better with carefully applied heat, such as with a paint gun.

Velocity Use

EZ-84 is the primary structural epoxy for the Velocity kit.  All structural glass lay-ups are preformed with this system, such as wings, fuselage, etc.

From the Builder's Manual.  "EZ-Poxy is used in all major lay-ups on foam and all lay-ups of glass to glass.  EZ-Poxy hardener is mixed with DER 324 resin at a 44:100 ratio.  For lay-ups on foam, a slurry of EZ-Poxy and micro balloons is used.  Throughout the construction manual this mixture is referred to as Micro-Slurry.  It is also used with milled fiber for structural fillets and structural bonding such as hinge pockets for the speed brake, doors, etc.  This epoxy was known as Epolite (2180/2183/2184) and SafetyPoxy in past manuals."

You may see references in books and catalogs and videos to Safe-T-Poxy, or Hexcel Epolite they have been replaced by EZ-Poxy.

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 Aircraft Spruce website:  

EZ84 Epoxy
EZ84 Epoxy
DER324 Resin
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
Viscosity may vary +/- 10%
Post Cure for 2 hrs. @ 150F


Packaging Weights

EZ-84 is typically sold in quarts, half gallon, gallon, and 5 gallon sizes. Aircraft Spruce currently offers all of these sizes.

Description Part No.
EZ EPOXY EZ10-1G RESIN 01-00245
EZ EPOXY 5 GALLON RESIN 01-00246
EZ EPOXY EZ84-1/2G HARDENER 01-00248
EZ EPOXY II EZ84-2-1/2G HARDENER 01-00250
EZ EPOXY II EZ84-5G HARDENER 01-00252

Directions for Use

Michael Epoxy Pump
Metered Dispensers

Temperature is critical for epoxy chemistry, and is often stored in a hotbox. It's best to maintain the part and the epoxy above 70 degrees Fahrenheit or so (see also post-cure). Measure the needed volume in the appropriate 44:100 ratio (by weight) or 47:100 (by volume). Most people choose to get a ratio pump such as Michael's, though you can get ratio-dispensing jug, or use a high-accuracy scale.

Good mixing is critical for epoxy work, but not that difficult. I find it easier to to mix with a tongue depressor with the end cut off square (with a pair of old, dull scissors) so I can scrape the sides and floor of the cup liberally. I typically mix for approximately 30 second to one minute, depending on the volume I've dispensed. I typically wet the target part, and then the lay-up fabric (usually on plastic), and keep the excess in the mixing cup to verify that the proper hardness has been achieved the following day.

Safety and Handling

Here are the manufacturer's Material Safety Data Sheets.
Media:EZ-83_84_87.pdf

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