Product Incident Report - New Binder Field Test

Product Incident Report - New Binder Field Test

Product Incident Report 

Binder Issues: Field Testing of New Binder from Alternative Mfg. 

(September 2021) 

Background Information and Observations

A small outdoor patio was installed using a binder formulation from a new manufacturer and our Rubber Stone EPDM. Shortly after the installation was complete (within the same day) there was a heavy downpour of rain on the surface and the next day there was bubbling of the cured surface (see Fig. 2).


Fig 1. The image above is the patio surface prior to installation. 



Fig 2. The images above are the affected cured surface after the heavy rain. Note the shadowing of the bubbled surface.

Conclusions

It appears that the irregular surface curing of the new binder with Rubber Stone EPDM was due to the exposure to excess water from heavy rainfall. This resulted in the removal of this irregular surface and installation of a new surface. The installation of the new surface was done without rainfall occurring and therefore cured properly without incident.