PRODUCT DESCRIPTION
Assembly High Tack is an extremely fast-setting, high-quality aliphatic resin emulsion adhesive. It dries very rapidly to give a short clamp time and has high solvent-resistance. Assembly High Tack is excellent for general assembly as well as edge and face gluing of hardwoods and softwoods.
PHYSICAL PROPERTIES
APPLICATION GUIDELINES
Moisture Content: Six to eight percent is the recommended moisture content for the gluing stock. High moisture content will dramatically increase the clamp time needed. Additionally, panel shrinkage may occur resulting in stress cracks or end joint delamination.
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 guarded against. When possible, glue joints should be prepared and glued the same day.
Spread: Generally, 140-245 g/m² of glue line is adequate. Conveyorized spreaders are commonly used in edge-gluing applications. The use of a wool felt sleeve on the spreader roll can aid in obtaining a desirable spread and reducing excess glue usage.
Assembly Time: Assembly time can vary greatly depending on the quantity of adhesive used, glue spread, porosity and moisture content of the gluing stock, environmental conditions, etc. Generally accepted assembly times range from two to 10 minutes.
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 pressures for various wood densities are: low, 7.0-10.5 Kg/cm²; medium, 8.8-12.3 Kg/cm²; high, 12.3-17.6 Kg/cm². Clamps for edge gluing should be spaced 20-40 cm apart and five cm from the end of the panel to evenly distribute pressure along the entire length of the glue line.
Clamp Time: Clamp time is dependent on the species and moisture content of the stock, environmental factors and glue line thickness. Clamp times can range from a few minutes in some assembly gluing to more than an hour, depending on the above factors. Clamp times should be determined under plant conditions.
Additional Conditioning. An overnight conditioning period is recommended prior to machining. A conditioning period of three to four days may be required to eliminate "sunken glue joints" caused by residual moisture in the glue line.
PERFORMANCE PROPERTIES
RELATED PRODUCTS
Assembly High Tack is a unique general-purpose adhesive that is suitable for a wide range of wood-to-wood interior applications. If another type of adhesive is needed for general assembly applications, Woodbond 285, Assembly 65 or Titebond 55T are also recommended. Please refer to our Assembly or ReacTITE products for additional information. For edge and face gluing, see our Titebond products. If a water-resistant adhesive is desired, Multibond EZ-1 should be considered. Special Note: Franklin offers many of our assembly glues with fluorescent dyes. Please contact us for additional information.
HANDLING AND STORAGE
Shelf life: 12 months. Store in tightly closed original container. Protect from freezing. Storing at temperatures above 25ºC will reduce the maximum storage time. If thickening, separation or settling occurs, the adhesive should be thoroughly mixed and will then be ready to use again. Protect adhesive from freezing. If product has been frozen, contact Franklin Customer Service for instructions.
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 for use of our product by Customer and are beyond Franklin’s control. Customer must determine the suitability of the product for a particular application before adopting it on a commercial scale.
© Copyright 2009. All rights reserved. Franklin International. Revised 10/12/09.