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EC905 Black Rubber Toughened Medium CA Glue
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L3890 Thick Black Rubber Speaker Adhesive
$3.50 – $59.95
Applications:
- Replacing/attaching foam & rubber surrounds
- Attaching dust cap to cone
- Attaching gaskets
- Repairing small holes in cones
- Attaching foam surround to basket
- Attaching surround to paper, poly, aluminum and composite cones
- Lead-wire dressing
- Grill cloth to wood or plastic frames
L3890 Thick Black Rubber Speaker Adhesive
L3890 thick black rubber speaker adhesive is a high viscosity (5000-8000 cps) rubber based cement. Formulated to meet high performance, durability and industrial requirements geared towards the loudspeaker industry. This cement has excellent adhesion to difficult to adhere to substrates such as polypropylene, styrene, butyl rubber and most of the coated cloths.
This cement has excellent flexibility. It is recommended as a dust cap and lead wires cement that works really well on polypropylene dust caps and cones.
Before using L3890 rubber adhesive always make sure that surface your gluing is clean, dry and free of dirt. For best results, lightly roughen surface before use. For dust caps we recommend scuffing the lip with sand paper. When gluing surround to frame first apply glue onto the frame and let it air out for a minute. Then apply surround and press firmly onto frame.
Once applied it usually tacks up in 4 minutes and allowing for plenty of time to make any adjustments needed before parts fully cure. Allow 24 hours for curing. Depending on materials and temperature, maximum strength may not be reached for 48 to 72 hours.
STORAGE AND HANDLING:
The shelf life is at least 6 months. For optimum shelf life of this product, store at temperatures of 60-80 F. Lower temperatures will cause increased viscosity of a temporary nature, whereas higher temperatures may have a permanent effect on viscosity.
L3890 is made of solvents and will evaporate if container is not closed. If after storing it for a long period of time and it starts to thicken, you can dilute it with toluene or MEK to thin it out. The softening point for this glue is 230° F and max temperature resistance is 250° F
Applications:
- Replacing/attaching foam & rubber surrounds
- Attaching dust cap to cone
- Attaching gaskets
- Repairing small holes in cones
- Attaching foam surround to basket
- Attaching surround to paper, poly, aluminum and composite cones
- Lead-wire dressing
- Grill cloth to wood or plastic frames
Highlights:
- Temperature-resistant and remains flexible, even in extreme conditions
- Waterproof and bond remains secure even when exposed to water
- Solvent-based high solids rubber cement
- Shock, and vibration resistant
Do not use for gluing voice coil to spider. Must use CA glue.
Warning: Extremely flammable do not use or store near heat, sparks, or open flame. To avoid inhaling, use only with adequate ventilation.
Warning: This product can expose you to chemicals including N-Hexane which is known to the State of California to cause birth defects or other reproductive harm. For more information, please visit: www.P65Warnings.ca.gov.
| Weight | 3 oz |
|---|---|
| Dimensions | 8 × 4 × 1 in |
| Size | 0.5oz, 1oz, 2oz, 4oz, 8oz, 16oz, 32oz |
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