LORD® Chemlok® 459X primer is designed for promoting adhesion to thermoplastic elastomers (TPE), thermoplastic polyolefins (TPO) and EPDM. Chemlok® 459X primer is in xylene solvent, diluted for direct application.

Chemlok® 459X primer can be used in conjunction with urethane and epoxy adhesives, as well as with a variety of double-sided tapes. It may also serve as a primer to enhance the adhesion of polyurethane coatings on cured EPDM and other difficult-to-bond elastomers.
Unit of Measure



N/A 0.1 mil2.5 µm

Shelf Life

N/A 6 months

Typical Properties


N/A Amber Liquid
Viscosity at 25 Degree Celsius (ºC) (77 Degree Fahrenheit (ºF)) Temperature1 N/A ~10 cP


N/A 850.0 to 880.0 kg/m³7.1 to 7.3 lb/gal

Solids Content by Weight

N/A 2.7 to 4.1 %

Flash Point (Seta) Temperature

N/A 27 ºC81 ºF


N/A Xylene

Note for Typical Properties

N/A Data is typical and not to be used for specification purposes.



N/A Enhances adhesion to difficult-to-bond elastomers, increasing the adhesion of coatings, double-sided tape and adhesives.

Easy to Apply

N/A Low viscosity allows for easy application, no dilution necessary.


Surface Preparation

N/A Wipe surface to be primed with a suitable solvent, or wash with detergent and water, then rinse.


N/A No mixing is required before or during use.


N/A Apply Chemlok® 459X primer by brush, dip or spray method. For optimum adhesion, the dry film thickness of Chemlok® 459X primer should be approximately 2.5 micron (0.1 mil).


N/A Allow primer to air-dry for 30-60 minutes at room temperature with good airflow, or use an oven at 93-121 ºC (200-250 ºF) for 5-10 minutes. A heat cycle generally improves adhesion.


N/A Use a dry cloth wipe to remove wet primer. Remove dried primer with xylene or a ketone-type solvent.

Storage and Handling

Storage and Handling

N/A Shelf life is six months from date of shipment when stored at 21-27 ºC (70-80 ºF) in original, unopened container.

Additional Information

Additional Information

N/A Values stated in this technical data sheet represent typical values as not all tests are run on each lot of material produced.

Information provided herein is based upon tests believed to be reliable. In as much as LORD® Corporation has no control over the manner in which others may use this information, it does not guarantee the results to be obtained. In addition, LORD® Corporation does not guarantee the performance of the product or the results obtained from the use of the product or this information where the product has been repackaged by any third party, including but not limited to any product end-user. Nor does the company make any express or implied warranty of merchantability or fitness for a particular purpose concerning the effects or results of such use.

Chemlok® and "Ask Us How™" are trademarks of LORD® Corporation or one of its subsidiaries.

LORD® provides valuable expertise in adhesives and coatings, vibration and motion control, and magnetically responsive technologies. Our people work in collaboration with our customers to help them increase the value of their products. Innovative and responsive in an ever-changing marketplace, we are focused on providing solutions for our customers worldwide. Ask Us How™.
  • 1 Brookfield LVT, Spindle 1, 60 rpm