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Advantage EP-950A

PRODUCT DESCRIPTION

 Advantage EP-950A is an acrylic-based emulsion polymer isocyanate system (EPI)
developed with exceptional water and heat resistance. It exceeds the requirements of
ASTM D2559-12a, ASTM D7247-07ae1, ANSI 405-2013 and CSA 0112.10 , which are required adhesive tests for many structural applications. This adhesive can be utilized in cold and hot press equipment. The emulsion must be mixed with Hardener 200, a polymeric isocyanate, at 13-15 parts Hardener 200 to 100 parts emulsion. 

 

PHYSICAL PROPERTIES


 
 

KEY PRODUCT FEATURES

•  Two-part acrylic EPI system
•  Recommended for applications requiring excellent water, heat, and solvent resistance
•  Works well in cold and hot press applications
•  Very low foam development
•  Exceeds ASTM D2559-12a, ASTM D7247-07ae1 and ANSI 405-2013
•  Exceeds CSA 0112.10
•  CCMC Evaluation Listing 14035-L

 
  

POT LIFE




MIXING INSTRUCTIONS

Advantage EP-950A resin is mixed with Hardener 200 at a ratio of 100 parts resin to 15 parts Hardener by weight or 6.45 parts resin to one part Hardener by volume. Avoid mixing for long periods of time or with excessive agitation as pot life is affected by mixing time and speed. While this product can be easily mixed by hand, it is usually more convenient to mix the components in a meter mix unit. Your Franklin representative can work with you to supply the appropriate mixing equipment.


PERFORMANCE PROPERTIES

• Exceeds ASTM D2559-12a Standard Specification for Adhesives for Bonded Structural Wood Products for Use Under Exterior Exposure Conditions: This standard covers adhesives suitable for the bonding of wood into structural laminated wood products for general construction and other uses where a high-strength, durable adhesive bond is required. The strength and durability requirements are based on the performance of the adhesive in laminated wood as measured by the following test methods: resistance to shear by compression loading; resistance to delamination during accelerated exposure to wetting and drying; and resistance to deformation under static load.

ASTM D2559-12a: Standard Specification for Adhesives for Bonded Structural Wood Products for Use Under Exterior Exposure Conditions -- (PFS Test Report #12-093)


Shear values for Douglas Fir must meet or exceed 1110 psi for 8% moisture content and 1020 for 12% moisture content. Test specimens were glued at 10-12% moisture content. *Minimum open time – 0 minutes; Maximum open time – 10 minutes







• Exceeds ASTM D7247-07ae1 Standard Test Method for Evaluating the Shear Strength of Adhesive Bonds in Laminated Wood Products at Elevated Temperatures: This standard is used for evaluation of the shear strength of an adhesive at ambient and elevated temperature relative to the performance of solid wood at the same conditions.

ASTM D7247-07ae1 Standard Test Method for Evaluating the Shear Strength of Adhesive Bonds in Laminated Wood Products at Elevated Temperatures -- (PFS Test Report #12-093)
 

 
• Exceeds ANSI 405-2013 Standard for Adhesives for Use in Structural Glued Laminated Timber: This standard provides the minimum requirements for evaluation of adhesives to be used in structural glued laminated timber products. Adhesives must meet the requirements of ASTM D2559, ASTM D7247, as well creep resistance, accelerated aging of bonded specimens compared to solid wood controls, and durability testing using boil-dry-freeze conditioning.

ANSI 405-2013 Standard for Adhesives for Use in Structural Glued Laminated Timber – (PFS Test Report #13-100)

          2.1.1 Exterior Exposure – ASTM D2559 – PASS (see test results above)

          2.1.2 Accelerated Aging – ASTM D1151 -- PASS 

         

          2.1.3 High Temperature – ASTM D7247 – PASS (see results above)

          2.1.4 Creep Resistance -- CSA 0112.9, section 4.10.1 – PASS

          2.1.5 Accelerated Aging – ASTM D1183, D – PASS 

         
          2.1.6 Durability – CSA 0112.9, section 5.5 -- PASS 
                   Required: At least 50% of the specimens shall have a shear strength greater than or equal
                                       to 508 psi.

 CSA 0112.10-08 Evaluation of Adhesives for Structural Wood Products
 (Limited Moisture Exposure)
 
 



APPLICATION GUIDELINES

Moisture content: Six to ten percent is the recommended moisture content for the gluing stock. Higher moisture content will increase the clamp time needed. Additionally, moisture content should mirror (as closely as possible) that which will be experienced in the end use market for the wood product being manufactured.

Stock preparation: The preparation of the stock to be glued is extremely important. Joints cut from rip saws should be free of saw marks. They should also be straight and square. Moulded or jointed stock should be free of knife marks. Glazed or burnished joints will prevent adhesive penetration and should be avoided. When possible, glue joints should be prepared and glued the same day. Gluing stock should be uniform in thickness. Variation in thickness should not exceed ± 0.005 inches/0.12 mm. Sanding to thickness should be performed using higher than 50 grit abrasives.

Spread rate: The recommended adhesive coating layer is the same as for most PVA products or approximately 0.007 inches/ 0.178 mm in thickness. EPI adhesives have superior gap filling properties due to their higher percent solids content. Generally, 200 g/m² / 41 #/MSGL of glue line is adequate.
Conveyorized spreaders are commonly used in edge-gluing applications. Adjust the applicator to ensure complete coverage on the staves. One side application is adequate in most situations. Verify that adequate coverage exists by monitoring squeeze-out along the glue lines when the panels are under pressure.

Assembly time: The assembly time of Advantage EP-950A varies with moisture content and spread rate. Higher spread rate can increase the assembly time of the product. When substrates are brought under pressure, a small bead of squeeze-out should be seen on the first samples assembled. Structural testing was completed with the following parameters:

Open Assembly Time: 10 minutes
Total Assembly Time: 20 minutes
Spread rate: 11-12 wet mils (351-384 g/m2)
Moisture Content: 10-12%
Laboratory Temperature: 70°F (21°C)
Relative Humidity: 50%

Clamping pressure: Pressure is dependent upon the species or material to be glued and joint preparation. Direct contact of the gluing surfaces must be made to obtain maximum strength. Suggested clamp locations for various wood densities are eight to fifteen inches (20-38 cm) apart and two inches (5 cm) from the end of the panel to evenly distribute pressure along the entire length of the glue line.



Press/clamp time: A minimum press time of 30 minutes is recommended under ideal conditions when using soft wood species at moisture content less than eight to ten percent and factory temperatures of 68 degrees Fahrenheit/ 20 degrees Celsius. Longer press times will be required for higher density species, higher moisture contents and colder factory temperatures. It is recommended that optimum press times be determined in actual plant conditions recognizing that seasonal changes may lead to variable requirements.

Working pauses: The spreader should be kept running during pauses in production for lunch breaks, etc. to help extend the working life of the adhesive.

Machining: Post-gluing conditioning is not unlike PVA products, although shorter curing times are frequently possible. We recommend that panels be allowed to condition at least six hours prior to additional processing.

Hot Press time: Press time is dependent on the adhesive used, gluing stock type, moisture content of the stock and environmental conditions. This hot press schedule is provided as a recommended starting point. In plant testing is recommended especially for temperatures and substrate thicknesses beyond this chart.



Clean-up: The foaming and cross-linking characteristics of EPI may cause blockages in the wastewater plumbing. Furthermore, there may be disposal concerns with the mixed product. It is recommended that the excess glue from the spreader and mixing containers be poured into a container and disposed of. Avoid sealing the container for at least 24 hours to permit EPI components to finish reacting. Glue pans and rollers may then be washed in warm water.



HANDLING AND STORAGE

Shelf life: Best if used within six months of date of manufacture. Please mix before use since it very common for filler to settle out during aging.

Storage of Hardener: Hardener 200 is very susceptible to moisture. We recommend that it be kept in a sealed container. A desiccant or nitrogen blanket is recommended.

Safety and disposal: Hardener 200 is a polymeric isocyanate. Use of gloves and other protective equipment is recommended. Consult MSDS before use for additional information.

For additional questions, Franklin’s technical service team is available at 1.800.877.4583. 24/7 technical service is available online at www.franklinadhesivesandpolymers.com.




IMPORTANT NOTICE TO CUSTOMER:
The recommendations and data contained in this Product Data Sheet for use of this product are based on information Franklin believes to be reliable. They are offered in good faith without guarantee, as conditions and methods of use of our product by Customer are beyond Franklin’s control. Customer should determine the suitability of the product for a particular application before adopting it on a commercial scale. Discoloration and checking of wood veneer materials may occur with use of the product. These occurrences range in appearance, color and may also vary depending upon the species of wood veneer to which the product is applied. Such discoloration and checking may appear during or after the manufacturing process which utilizes the product. Environmental conditions in some manufacturing plants and end-use locations can contribute to discoloration and checking. Because such discoloration and checking are attributable to conditions beyond Franklin’s control, Franklin cannot assume any responsibility or liability for any discoloration and/or checking problems that might occur.

All orders for Franklin products shall be subject to Franklin International, Inc.’s Standard Terms and Conditions of Sale which may be found at
http://www.franklini.com/Terms_and_Conditions.aspx. (“Standard Terms”). Different or additional terms proposed by Customer are expressly rejected and shall not become part of the agreement between Customer and Franklin International, Inc. with respect to any order. Contact Franklin International, Inc. immediately if you cannot access our Standard Terms and we will provide you a copy upon request. Any sale of products by Franklin to Customer is expressly conditional upon Customer’s consent to the Standard Terms, and Customer’s acceptance of any performance by, or receipt of products from, Franklin International, Inc. shall constitute Customer’s acceptance of the Standard Terms and Conditions of Sale.
© Copyright 2016. All rights reserved. Franklin International. Revised 06/24/16.