Material Properties
Polyurethane Crack Sealers shall meet the requirements of ASTM C920, which specifies the Type, Grade, Class, and Use.
Submittal and Testing Requirements
The applicant must supply an independent lab test dated within two years from the initial submission which test for the specified criteria for each Type, Grade, Class and Use for which they want the product to be listed.
QCML Listing, Expiration, and Re-Qualification
Once qualified, the Concrete Crack Sealer will be listed on the MassDOT QCML. The product shall remain on the qualified list for five (5) years unless one of the following occurs:
- If the product’s technology changes.
- If the product formulation or technology changes, the manufacturer shall notify MassDOT RMS.
- MassDOT RMS determines that the product no longer meets the minimum requirements.
A written request for re-qualification must be submitted to the Department at least 60 days prior to the expiration date to remain on the QCML.