Pacer PX-50 Plastic Performance Cyanoacrylate Adhesive – 1 lb (453 g) Bottle

This 1 lb (453 g) bottle of Pacer PX-50 is the production volume size of Pacer’s ethyl propyl cyanoacrylate, 30 to 80 cP with .004 in gap fill. It’s the size for a moulding or assembly line bonding plastic every day. PX is the only Pacer cyanoacrylate family built on ethyl propyl rather than ethyl or ethyl hybrid, and on ABS and rigid PVC it gives substrate failure, meaning the plastic breaks before the bond. At 453 g it holds about 23 times what the 20 gram bottle does, and it sells individually rather than by the case.

Package Details

Full property data, the substrate table, and guidance on designing a joint around substrate failure are on the main Pacer PX-50 product page, or in the Pacer PX Series technical data sheet (PDF).

Choosing the 1 lb Over the 20 Gram

• 453 g against 20 g, about 23 times the material, and it sells individually rather than in a case of 10.
• Prove the bond first. Moulded plastic varies with release agent and regrind content, so run the 20 gram on parts from real production before you buy a pound.
• This is a bulk container, not a bench bottle. Most shops decant into applicator bottles or charge a dispensing system from it.
• Refrigeration matters more at this size. A cold 1 lb bottle takes real time to reach room temperature, and opening it early pulls condensation into a lot of material at once.
• Shelf life is one year stored per the data sheet, and an opened container works against ambient humidity from day one.
• Worth knowing across the family: PX-50 and PX-500 are both available in a 1 lb, so you can standardize either grade at volume.

Performance in Production

• Enough volume to feed a daily plastic bonding operation without a purchase order every other week.
• Substrate failure on ABS and rigid PVC. Design the bond area against the tensile strength of your specific plastic, since the adhesive is not the limiting factor on those materials.
• Ethyl propyl chemistry, formulated for plastics and elastomers rather than adapted from a general purpose grade.
• 4400 psi tensile and 2700 psi tensile shear on steel if the metal side of a mixed joint matters.
• 1000 psi on aluminum, the lowest figure in the Pacer line. Do not standardize a line on PX if any of the joints involve light alloy.
• .004 in gap fill suits injection-moulded tolerances. If fit-up varies more than that across a run, PX-500 fills .008 in in the same chemistry.
• Fixture in 1 to 5 minutes and 80% of strength in 15 to 30 minutes, which keeps a bonding station moving inside one takt.
• Elongation under 2%. Rigid bond, so design the joint for shear rather than peel or flex.
• Decant only what gets used in a shift and keep transfer containers dry and capped. Cure rate tracks relative humidity.
• Still a low viscosity liquid with no published sag figure. Build the station around a horizontal or fixtured joint.

Common Applications

• Daily production bonding of ABS and rigid PVC parts
• Injection moulding cells bonding parts straight off the press
• Plastic fabrication and assembly at volume
• Plastic to plastic joints where maximum strength matters
• Plastic to steel joints on a production line
• Feeding automatic dispensing equipment on a bonding cell
• Filling shop applicator bottles from bulk
• Contract manufacturing calling out MIL-A-46050C Type II, Class 1

Related Products

• Pacer PX-50 Plastic Performance Cyanoacrylate Adhesive, full detail and both sizes
• Pacer PX-500 Plastic Performance, .008 in gap, also available in a 1 lb
• Pacer RX-100, 1 lb bottle, publishes substrate failure on nylon and polycarbonate as well, and handles plated or oily surfaces
• Pacer E-40, 1 lb bottle, the general purpose grade at the same viscosity, stronger on aluminum
• Pacer Premium Acetone Accelerator, speeds full cure through larger gaps
• All cyanoacrylate instant adhesives

Frequently Asked Questions

How much adhesive is in a 1 lb bottle of Pacer PX-50?

Net weight is 1 lb (453 g), about 23 times the 20 gram bottle. Pacer’s guidance is one free-falling drop per square inch of bond area, but Pacer does not publish a coverage figure per gram. If you need to budget material against a part count, send us the part and we’ll work it out from a sample.

Is the 1 lb Pacer PX-50 the same adhesive as the 20 gram?

Yes, identical. Same ethyl propyl chemistry, same 30 to 80 cP viscosity, same .004 in gap fill, same MIL-A-46050C Type II, Class 1 rating. Only the container and the order quantity change. Nothing needs requalifying when you step up.

Which Pacer PX grades come in a 1 lb bottle?

Both current grades. PX-50 at 30 to 80 cP filling .004 in, and PX-500 at 400 to 600 cP filling .008 in. Use PX-50 if your moulded fit-up is good, and PX-500 when it varies more across a run, though PX-500’s aluminum figure drops further to 700 psi.

Should I standardize a line on Pacer PX-50?

Only if the line is genuinely plastic work. On ABS and PVC it is the right chemistry and gives substrate failure. But at 1000 psi on aluminum it is the weakest grade in the Pacer line on light alloy, so a mixed line running some plastic-to-aluminum joints will get a much weaker bond on those. If your line is mixed, talk to us before standardizing, because two grades may be cheaper than one bad joint.

Can I decant Pacer PX-50 into smaller applicator bottles?

Shops do it routinely with bulk CA, and Pacer’s published guidance does not cover decanting, so treat it as shop practice rather than a manufacturer instruction. Keep transfer containers clean, dry, and capped, and move only what gets consumed in a shift, since cure rate depends on relative humidity. If you need Pacer’s formal position on repackaging for a quality system, we’ll ask them.

How should Pacer PX-50 be stored, and what is the shelf life?

Refrigerate unopened bottles at 40F (4C) for optimum results, then let the adhesive come up to room temperature before opening. A 1 lb bottle takes longer to warm through, so give it time. Once opened, store in a cool, dry location. Stored that way, expect a one year shelf life.

What is the part number for the 1 lb Pacer PX-50?

Our SKU is PAC-FG05083. The Pacer part number is FG05083 and the UPC is 0 87093 00287 6. On older Pacer paperwork the same item shows as Pacer item number 11740070.

Questions on Fit

Questions on fit for your bonding process, or on volume for a production line? Call (800) 220-1966 or email [email protected].