Wooden Door Seal Test Report: TPE Sealing Strip RoHS Compliance

A door sealing strip plays an important role in the overall construction of a door system. In addition to its sealing function, the material used in the sealing strip is an important consideration for product quality, material safety, and compliance with international requirements.

To verify the material composition of the sealing strip used in our door products, Zonle Doors arranged third-party testing of a TPE elastomeric sealing strip. The test was conducted by Shanghai Weipu Testing Technology Group Co., Ltd., with the report issued under Report No. SHA03-25054997-JC-01.

The test results showed that the tested TPE sealing strip met the specified limits of the EU RoHS Directive 2011/65/EU and its amendment Directive (EU) 2015/863 for the substances covered by the test.

What did the TPE door seal test report verify?

The test verified the levels of restricted substances in a TPE elastomeric sealing strip. Lead (Pb), cadmium (Cd), mercury (Hg), hexavalent chromium (Cr(VI)), PBBs, PBDEs, and four specified phthalates were all reported as N.D. (Not Detected). Based on the tested sample, the results complied with the applicable RoHS limits stated in the report.

TPE Sealing Strip Test Report Overview

The tested material was identified in the laboratory report as a TPE Elastomeric Sealing Strip.

The sample description and testing information are taken directly from the laboratory report.

What Substances Were Tested?

The test focused on restricted substances commonly addressed under RoHS requirements.

The laboratory tested the following substance groups:

• Lead (Pb)

• Cadmium (Cd)

• Mercury (Hg)

• Hexavalent Chromium (Cr(VI))

• Polybrominated Biphenyls (PBBs)

• Polybrominated Diphenyl Ethers (PBDEs)

• Dibutyl Phthalate (DBP)

• Benzyl Butyl Phthalate (BBP)

• Bis(2-ethylhexyl) Phthalate (DEHP)

• Diisobutyl Phthalate (DIBP)

Different analytical methods were used according to the substance being tested, including ICP-OES and GC-MS.

Test Results: All Specified Substances Not Detected

The laboratory results reported N.D. (Not Detected) for all of the tested restricted substances.

For the four heavy metals, the report recorded:

The report also found no detectable PBBs or PBDEs within the specified detection limits. The four tested phthalates—DBP, BBP, DEHP, and DIBP—were also reported as N.D. against a limit of 1000 mg/kg for each substance.

In the report, N.D. means “Not Detected,” defined as a concentration below the applicable Method Detection Limit (MDL). It should not be interpreted as an absolute zero concentration.

TPE Sealing Strip – RoHS Restricted Substance Test Results

RoHS Compliance of the Tested TPE Sealing Strip

Based on the testing performed on the submitted sample, the laboratory concluded that the tested levels of lead, cadmium, mercury, hexavalent chromium, PBBs, PBDEs, and the specified phthalates complied with the limit requirements of EU RoHS Directive 2011/65/EU and amendment Directive (EU) 2015/863.

This provides documented third-party testing evidence for the material used in the tested TPE sealing strip.

For international door projects, material compliance documentation can be an important part of supplier qualification and technical review, particularly when customers require supporting test reports for product materials.

TPE Sealing Strip Application in Door Systems

Why TPE Sealing Strips Matter in Door Systems

TPE elastomeric sealing strips are used as flexible sealing components in door assemblies. Their position within the door system makes material selection and quality control important considerations during product development and manufacturing.

For a door manufacturer, checking the material itself provides an additional layer of quality control beyond the appearance and dimensional inspection of the finished door.

At Zonle Doors, material-related testing and technical documentation can help customers better understand the materials used in our door products and support project-level quality evaluations.

Third-Party Testing for Greater Material Transparency

The report was issued by Shanghai Weipu Testing Technology Group Co., Ltd. following testing of the customer-submitted TPE elastomeric sealing strip.

The testing process included analytical procedures for inorganic restricted substances and organic compounds. The laboratory used ICP-OES for the tested heavy metals and GC-MS for PBBs, PBDEs, and the specified phthalates.

The report also provides the laboratory testing workflow, including sample preparation, extraction, instrumental analysis, and data processing.

Quality Documentation for Global Door Projects

For door projects, technical documentation can be just as important as the physical product itself.

Depending on project requirements, customers may need documentation covering:

• Material composition

• Product testing

• Environmental compliance

• Quality management

• Fire performance

• Product specifications

• Factory and manufacturing capabilities

The TPE sealing strip test is one example of the material-level documentation available for evaluating components used in door products.

Conclusion

The third-party test report for the TPE Elastomeric Sealing Strip confirms that the tested sample had no detectable levels of the specified RoHS-restricted substances within the laboratory's applicable detection limits.

According to the laboratory's conclusion, the tested sample complied with the relevant limits under EU RoHS Directive 2011/65/EU and Directive (EU) 2015/863.

For customers evaluating doors for international residential, commercial, hospitality, and construction projects, this type of material testing provides additional documented evidence of product material control and compliance.

Looking for doors with documented material testing and compliance support? Contact Zonle Doors to discuss your project requirements and request available technical documentation.

Test Report: SHA03-25054997-JC-01
Sample: TPE Elastomeric Sealing Strip
Testing Date: May 19–22, 2025
Result: Compliant with the stated EU RoHS requirements for the tested substances