ACRIFIX® 1R 0192 Bright

Product and Use

ACRIFIX® 1R 0192 Bright is a one-component polymerization adhesive. The clear, slightly purple viscous solution acrylic polymer in methyl methacrylate, polymerizes on exposure to light. 

Applications

Preferably for transparent edge and area bonds of clear acrylic (PMMA), i.e. ACRYLITE® premium acrylic sheet, ACRYLITE® cast acrylic sheet and parts made of ACRYLITE® molding compounds with one another, but also for other clear plastics such as ABS, PET, PC, PS and PVC.

Typical Values of Properties

  • Viscosity; Brookfield II/12/68°F/20°C 20: 1800 ± 200 cp
  • Density/68°F/20°C: ~ 1.02 g/cm3
  • Refractive index nD68: - 1.44
  • Color: clear, slightly purple
  • Flashpoint (Closed Cup): < 39°F / 4°C
  • Solids content: 32 ± 2%
  • Storage stability: 2 years in the original container, if stored properly. Maximum 86°F / 30°C
  • Packaging materials: aluminum
  • Curing: Physically by evaporation and absorption in the jointed parts

Light Source  Curing Period (at 5 hrs at 77°F/25°C)

  • Fluorescent lamp, illuminant 25:  15 – 30 min  Bond/lamp and lamp/ lamp spaced at approx. 10 cm and 20 cm, respectively  
  • Superactinic UV-A . uorescent lamp, e. g. Philips TL…/05:  10 – 15 min 
  • Tanning studio UV-A . uorescent lamp, e. g. Philips CLEO Performance:  10 –15 min
  • Diffuse ambient lighting, illuminant 25:  1.5 – 3 hrs  
  • Sunlight:  10 – 20 min  
  • Pot life (at 200 g in a glass vessel exposed to diffuse ambient lighting):  ~ 30 min (at 25 °C)  

Safety Measures and Health Protection

Contains methyl methacrylate. Irritating to respiratory system and skin. Sensitization by skin contact possible. Keep away from sources of ignition and do not smoke. Avoid contact with skin. Wear suitable protective gloves.

Storage/Transport

Keep container tightly closed in a cool place protected against light.

Working Instructions

Preparing the parts to be bonded. Degrease the surfaces to be bonded with water containing a wetting agent (such as detergent), or with ACRIFIX® TC 0030. 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 and injection-molded acrylic should be annealed as a matter of principle. Typical annealing times – also for cast acrylic – are 2 to 4 hours in the air. or oven at 158-176°F (70-80°C). If annealing is not possible, we recommend the use of ACRIFIX® 1S 2105 (only for commercial use). This assumes the surfaces to be bonded are at and without V-grooves or superimposed layers.

Bonding Technique

Fix the parts to be bonded in the desired position (avoid shading) and apply suitable adhesive tape to the joint and to protect surrounding areas. Introduce ACRIFIX 1R 0192 into the joint either directly from the tube or by means of a glue dispenser or disposable syringe, avoiding bubble formation. Then expose the joined parts to a suitable light source (see Curing). For this, “ordinary” .uorescent lamps of illuminant type 25 are preferred since they provide optimal curing of ACRIFIX® 1R 0192 and require no special protective measures against UV radiation at the workplace. 

Other Measures

Roughening-up with abrasive paper (grit 230 to 320) improves the adhesion to untreated surfaces of cast acrylic. Severely stressed bonds or those intended for outdoor exposure should be annealed for 2 to 4 hours at 158-176°F (70-80°C) immediately after curing. ACRIFIX® 1R 0192 must not get into closed cavities (e.g. double glazing, tube interiors), since the curing process is severely hampered at such sites, and there is a risk of stress cracking in the bonded parts. 

Properties of Bond

Further treatment of bonded parts: 2 to 6 hours after curing; sanding and polishing after 24 hours.
Tensile shear strength (v = 2 in/min):
Material (to itself; cured with illuminant 25) Non-annealed Annealed (5 hrs at 76°F/80°C)
ACRYLITE®  cast sheet 4060 ± 725 psi 6960 ± 725 psi
ACRYLITE®  premium sheet 4060 ± 725 psi 7250 ± 725 psi

Appearance

Colorless, clear. Fewer bubbles will form with ACRYLITE® cast sheet as compared to ACRYLITE® premium sheet. 

Annealing:

Crazing will occur if high internal stress from fabrication is not relieved. Internal stress can be minimized by careful fabrication and annealing before the cementing. To anneal ACRYLITE® sheet, place it in an air circulating oven at 180°F for an hour for each millimeter of a thickness (minimum of two hours). For example, a 6.0 mm (0.236”) sheet would be annealed for six hours. For more information, refer to ACRYLITE FF sheet Fabrication Technical Brief #12, Annealing.

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) hereunder 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, it's 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 the buyer, and as buyer’s exclusive remedy, the seller will, within a reasonable time, supply the buyer with a 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 the seller in writing.

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

Important Notice:

The information and statements herein are believed to be reliable but are not to be construed as a warranty or representation for which Roehm America assumes legal responsibility. Users should undertake sufficient verification and testing to determine the suitability for their own particular purpose of any information or products referred to herein. NO WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE IS MADE. Nothing herein is to be taken as permission, inducement or recommendation to practice any patented invention without a license.