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Description for 3M 94CA
• Postformable high strength • Low telegraphing spray pattern • SCAQMD Rule 1168 Compliant Contact Adhesive • Reduced open timeApplication Type Bond 1 Part or 2 Part 1-Part Material Form Liquid, Synthetic Elastomer Substrate Acrylic, Aluminum, FRP (Fiber Reinforced Plastic), Fabrics, Glass, Metal, Heavy papers, Most plastics, Polypropylene, Steel, Wood, Polyethylene, Galvanized, Soft foams, ABS, Birch Manufacturer 3M Chemistry Synthetic Elastomer, HAPS free Cure Method Solvent Application Temperature (°F) 60 to 80 Cure Time (min) Fast, 1.00 Viscosity (cPs) <500 Spray Color Red, Translucent High Temperature Resistance (°C) High heat resistance Density (g/cm³) 7.9 (lbs/gal) -
Technical Data for 3M 94CA
Overview
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Application Type
- Adhesive - Bond
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1 Part or 2 Part
- 1-Part
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Material Form
- Elastomer - Synthetic Elastomer
- Liquid
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Substrate
- Foam - Soft foams
- Glass
- Metal
- Aluminum
- Steel
- Galvanized
- Plastic - Most plastics
- Acrylic (PMMA) - Acrylic
- Polypropylene
- Polyethylene (LDPE, HDPE) - Polyethylene
- ABS
- Wood - Birch
- Composites - FRP (Fiber Reinforced Plastic)
- Fabric - Fabrics
- Paper - Heavy papers
- Other - HPL, Particle board
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Industry
- Industrial
- Furniture / Wood-Working - Woodworking and cabinetry, Countertops, Cabinets, Shelves, Fixtures
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Chemistry
- Non-hazardous - HAPS free
- Other - Synthetic Elastomer
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Application Method
- Dispenser - Applicator
- Spray
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Cure Method
- Solvent
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Color
- Translucent
- Red
Specifications
Cure Specs
Application Temperature (°F) 60 to 80 Cure Time (min) Fast, 1.00 Viscosity (cPs) <500 Spray Set Time (min) 1.00 to 5.00 Work / Pot Time (min) 1.00 to 15 Bond Strength
General Bond Strength (psi) High Shear Strength (psi) 203, 288, 285, 460, 160, 171, 80, 106, 258 Test Method Tensile Strength (psi) 30 (grams) Test Method Material Resistance
High Temperature Resistance (°C) High heat resistance Moisture/Humidity Resistance High moisture resistance Other Properties
% Solids (%) High, 34, 28 Test Method Density (g/cm³) 7.9 (lbs/gal) Business Information
Shelf Life Details Storage: Store product at 60°-80°F (16°-27°C) for maximum storage life. Higher temperatures reduce normal storage life. Lower temperatures may cause increased viscosity of a temporary nature. Rotate stock on a “first in-first out” basis.lWhen stored at the recommended conditions in the original, unopened container, this product has a shelf life of 15 months from date of shipment. Shelf Life Temperature (°F) 60 to 80 Shelf Life Type From date of shipment Shelf Life (mon) 15 Not Good For
Don't Use With One surface bonding -
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Best Practices for 3M 94CA
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Surface Preparation
For best results, all surfaces to be bonded must be clean, dry and free from dirt, dust, oil, loose paint, wax or grease, etc.
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Application
Slowly open the cylinder valve and inspect the connections for any leaks. Tighten if needed.
Fully open the valve.
Unscrew the trigger stop/adjusting nut away from the trigger 3-4 turns and spray a test pattern. For more adhesive output, continue to screw the nut away from the trigger. For less adhesive output, screw the nut back towards the trigger.
Hold the applicator 3-10 inches away from the surface to be sprayed and apply a uniform coat of adhesive. (The smaller the spray pattern chosen in step 3, the closer the applicator gun will need to be to the surface and vice versa for larger patterns.)
Apply 1-3 even coats of adhesive. (This will depend on the needed coverage for the bonding application.)
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Curing
Allow adhesive to dry until tacky and then apply sufficient pressure to ensure complete contact.
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Testing
Test the tackiness by gently touching the adhesive with your knuckle. If the adhesive transfers to your skin, it is too wet. If the adhesive is aggressively tacky and does not transfer to your skin, it is ready to bond. If the adhesive is too dry or only has a very light tack, it is too dry and another coat of adhesive should be applied to at least one of the surfaces
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Troubleshooting
How to Eliminate Cold Weather Problems:1.) Store the cylinders in a controlled environment with temperatures between 60°-80°F (16°-27°C).
2.) Keep cylinders off of cold concrete floors and away from outside walls
3.) Use heat belts or blankets, approved for use with flammable adhesives, to control the temperature of the cylinders.
4.) Allow additional time for solvents and propellants to flash off, when temperatures are below 60°F (16°C)
If the system sprays poorly or won’t spray at all: The sequence below runs through a complete clog into the cylinder valve. If at any time during the sequence the problem is resolved, stop, clean the needed parts, put the system back together, and you are finished
1. Make sure the cylinder is not empty
2. Make sure the cylinder valve is open.
3. Close the applicator trigger stop adjusting nut and clean the nozzle tip.(Does it spray now?)
4. Take off the nozzle and try spraying. (Does it spray now?) Clean the nozzle.
5. Shut off the cylinder valve, CAREFULLY and SLOWLY – loosen the applicator gun/hose connection and look for adhesive to squirt out. If adhesive starts to leak out, allow it to slowly continue to do so until it stops. (This will be a little messy, but you will need to bleed off the pressurized adhesive to clean the applicator gun.) The applicator gun has a clog at the valve, stem or inlet area and needs to be cleaned.
6. If nothing leaks out after fully loosening the applicator gun, CAREFULLY remove applicator gun, realizing that the hose may be clogged but could be full of adhesive and pressure depending on where the clog is. (Secure the open end of the hose into a bucket in case the clog releases and the system flushes.)
7. CAREFULLY and SLOWLY loosen the hose connection at the cylinder valve. Look for adhesive to squirt out. If adhesive starts to leak out, allow it to slowly continue to do so until it stops. (This will be a little messy, but you will need to bleed off the pressurized adhesive in the hose). Clean or replace the hose
8. With everything now isolated from the cylinder, place a bucket in front of the cylinder valve and slowly open it to see if any adhesive comes out. If it does, put the cleaned system parts back together. If it does not, there is something wrong with the cylinder or cylinder valve and it should be returned.
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Tensile Strength Test Methods
Tensile Strength | Cure Time | Test Temperature | Test Method |
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30 (grams) | 10 min | 93°C | 2 square inch bonds tested with 30 grams hanging in tensile. Temperature is held for 10 minutes and ramped at 10°F increments, until complete failure. |
Shear Strength Test Methods
Shear Strength | Type | Substrate | Test Temperature | Test Method |
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203 psi | Overlap shear Strength | ABS to ABS (2 surface adhesive bond) | 24°C | 1 square inch bonds tested at 2 inches per minute separation rate at 75°F (24°). |
288 psi | Overlap shear Strength | Acrylic to Acrylic (2 surface adhesive bond) | 24°C | 1 square inch bonds tested at 2 inches per minute separation rate at 75°F (24°). |
285 psi | Overlap shear Strength | Aluminum to Aluminum (2 surface adhesive bond) | 24°C | 1 square inch bonds tested at 2 inches per minute separation rate at 75°F (24°). |
460 psi | Overlap shear Strength | Birch to Birch (2 surface adhesive bond) | 24°C | 1 square inch bonds tested at 2 inches per minute separation rate at 75°F (24°). |
160 psi | Overlap shear Strength | Galvanized to Galvanized (2 surface adhesive bond) | 24°C | 1 square inch bonds tested at 2 inches per minute separation rate at 75°F (24°). |
171 psi | Overlap shear Strength | HPL to Particle Board (2 surface adhesive bond) | 24°C | 1 square inch bonds tested at 2 inches per minute separation rate at 75°F (24°). |
80 psi | Overlap shear Strength | Polyethylene to Polyethylene (2 surface adhesive bond) | 24°C | 1 square inch bonds tested at 2 inches per minute separation rate at 75°F (24°). |
106 psi | Overlap shear Strength | Polypropylene to Polypropylene (2 surface adhesive bond) | 24°C | 1 square inch bonds tested at 2 inches per minute separation rate at 75°F (24°). |
258 psi | Overlap shear Strength | FRP (Fiber Reinforced Plastic) to FRP (2 surface adhesive bond) | 24°C | 1 square inch bonds tested at 2 inches per minute separation rate at 75°F (24°). |
% Solids Test Methods
% Solids | Test Method |
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High | |
34 % | Solids Content of Adhesive – propellant removed (by wt.) |
28 % | Solids Content – aerosol (by wt.) |