Last month, Kraton hosted an online seminar titled "Elastomeric Roof Coatings". The seminar highlighted two grades namely G1642 and G1652 as suitable for the roofing market. According to the information presented in the seminar, good posibilities exist for replacing acrylic coatings with Kraton products. The current roofing market is dominated by acrylic coatings. These coatings however have two limitations making them very costly. First is that they can only be applied in totally dry conditions. This not only includes the time of installation but also for the several days following as the roofing needs drying time. This limitation can be very serious in rainy climates or during rainy seasons. Another limitation is that acrylics cannot be installed in colder weather. Kraton's roofing solutions can be applied in both wet or cold weather significantly increasing the number of working days for roofers.
The Kraton presentation focuses mostly on the spray-on solution with G1642. It mentioned a roll on solution with G1652 but did not go into detail. Perhaps there is a third option of mixing G1642 and G1652 to improve physical properties and still apply easily.
Compared side by side with acrylic roofing, it is difficult to identify a visible difference between Kraton and traditional acrylic roofing methods. However, Kraton roofing solutions do perform much better in terms of "chalking" which is the whitening that occurs when roofing is scratched or marred. Chalking with Kraton roofing is minimal said presenter Jason Surman.
Kraton also emphasized the following additional benefits:
1) more possible work days
2) less maintenance and warranty work
3) reduced total cost of installation
4) reduced total life cycle cost of roof to user
5) possibility of extended warranties
6) low VOCs during installation
More information about roofing materials can be found on the Kraton website at
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