ACRIFIX™ 2R 0195 Specialty Bonding Agent Technical Information

Product and Use

Two-component polymerization adhesive. Thixotropic solution of an acrylic resin in methyl methacrylate, which polymerizes completely upon addition of ACRIFIX™ CA 0020 (catalyst).

Applications

Preferably used for bonding matte finish acrylic (PMMA), e.g. ACRYLITE® Satin Ice acrylic sheet SC and DC (ACRYLITE® P-95 and ACRYLITE® DP9 acrylic sheet) as well as to other thermoplastics such as ABS, PET, PC, PS, PVC, and to other materials such as wood. The cured joints are almost colorless.

Typical Values of Properties

  • Viscosity (Brookfield II/6/68°F / 20°C): 3000 to 4000 cp (thixotropic)
  • Density/68°F/20°C: ~ 1.02 g/cm3
  • Refractive indexNn: ~ 1.44
  • Color: slightly purplish, milky
  • Flash point (Closed Cup): ~ 50oF / 10oC
  • Solids content: ~ 29%
  • Storage stability: 1 year in original container at 68oF
  • Packaging material: HDPE, PP, aluminum and glass
  • Thinner and Cleaner: ACRIFIX™ TC 0030, max. 30 %
  • Cleaning agents for equipment: ACRIFIX TC 0030, or ethyl acetate
  • Curing / pot life (at 200 g adhesive, 68°F/20°C):
    • with 3% ACRIFIX CA 0020: ~ 50 min / ~ 20 min
    • with 5% ACRIFIX CA 0020: ~ 30 min / ~ 15 min
    • with 8% ACRIFIX CA 0020: ~ 20 min / ~ 10 min

Safety Measures and Health Protection

Contains methyl methacrylate. Irritates the eyes, respiratory system, and skin. May cause sensitization by skin contact. Keep away from sources of ignition. Do not smoke. In the event of eye contact, rinse immediately with plenty of water and consult a doctor. Wear suitable protective gloves.

Storage / Shipping

Keep container tightly closed in a cool place.

Preparing the Parts to be Bonded

Degrease the surfaces to be bonded with water containing a detergent (washing-up liquid), or with ACRIFIX TC 0030 (thinner/ cleaner). Internally stressed parts must be annealed before bonding in order to avoid stress cracking. The annealing conditions depend on the type of material, the degree of forming, and the thickness of the parts to be bonded. Parts made of extruded or injection molded acrylic should be annealed as a matter of principle. Typical annealing times (at 3mm material thickness) are 2 to 4 hours in an airflow oven at 158-176°F (70-80°C) – also for cast acrylic. For further details, consult our Techknowlogy Center.

Preparing the Adhesive

Mix ACRIFIX 2R 0195 with 3 to 8% ACRIFIX

CA 0020, avoiding air entrapment as much as possible. In the covered container, any air bubbles may be allowed to rise to the surface of the adhesive, but they can also be removed in a vacuum desiccator (min. 5.9 in. Hg). As soon as the ACRIFIX 2R 0195 mixture becomes thick and noticeably warm (end of pot life), it should be discarded. Shake ACRIFIX 2R 0195 in bottle thoroughly prior to activation with ACRIFIX CA 0020!

Bonding Technique

Fix the parts to be bonded in the desired position and apply suitable adhesive tape to seal the joint and to protect surrounding areas. Introduce this adhesive into the joint either directly from the mixing vessel or by means of a glue dispenser or disposable syringe, voiding air entrapment as much as possible.

Other Measures

Roughing with abrasive paper (230 to 320 grit) improves the adhesion to untreated surfaces of cast acrylic. Severely stressed bonds or bonds intended for outdoor exposure should be annealed for 2 to 4 hours at 158-176°F (70-80°C) immediately after curing. The adhesive must not get into closed cavities, since the curing process is severely hampered in these places and stress cracking in the bonded parts may be the result. It may be colored with colorants.

Properties of Bonds

  • Further treatment of bonded parts: 2 to 3 hours after curing
  • Tensile shear strength (v = 2 in./min): Butt joint of ACRYLITE Satin Ice sheet SC or DC / ACRYLITE P-95 / ACRYLITE DP9) sheet with itself:
    • 5000 to 5800 psi (non-annealed)
    • 5800 to 6500 psi (annealed for 5 hrs at 176°F/80°C)

Appearance

Fine matte surface

Limitation of Liability

Our ACRIFIX adhesives and other auxiliary agents were developed exclusively for use with our ACRYLITE acrylic sheet products and are specially adjusted to the properties of these materials. Any recommendations and guidelines for workshop practice therefore refer exclusively to these products. Seller's liability shall be limited to the purchase price of the product supplied (or to have been supplied) here under in respect of which damages are claimed. All technical or other advice by seller, whether or not at buyer’s request, with respect to the product, its processing, further manufacture, other use or resale or otherwise, is given gratis by seller and seller shall not be liable for, and buyer assumes all risk of, such advice and the results thereof. SELLER SHALL IN NO EVENT BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR OTHER DAMAGES, AND REGARDLESS WHETHER THE CLAIM IS BASED ON WARRANTY, CONTRACT, TORT, STRICT LIABILITY, NEGLIGENCE, OR OTHERWISE. Upon satisfactory proof of claim by buyer, and as buyer’s exclusive remedy, seller will, within a reasonable time, supply buyer with replacement product of the same or equivalent type, free of charge, freight prepaid or, at seller's option, refund the purchase price for the product upon return of the product or other delivered material, or the unused portion thereof. Buyer charges for replacements and returns for credit will not be allowed unless authorized by seller in writing.

For further information on safety measures, the exclusion of health risks when handling adhesives and on their disposal, see our Safety Data Sheet