Phenolic Heater Exchangers

[boknosee]

In the process of researching methods, systems techniques in controlling temperature (70 to 90 degree F)phenolic resin. Resin is pump through a 1.5 inch pipe and into an application pan. Intent is to control resin temperature a point prior to the application. Some ideas are heat exchangers, wraping resin pipes with electrical heater jackets. Concerns are temperature control and resin should not scale/build up within walls of pipe (during heating).
Any ideas, suggestions, past experience, recommendations.
Any help would be greatly appricated.