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Page t of 4 <br />Garrett Backus [EH] <br />From: <br />Mike Bolt [mikeb@dpm-Ilc.com] <br />Sent: <br />Friday, August 07, 2009 5:52 PM <br />To: <br />Garrett Backus [EH] <br />Subject: <br />RE: Diversified Sump Entry fittings UL Listing <br />Attachments: <br />Combined UL files.pdf <br />Hi Garrett, <br />Unfortunately, there is no easy answer to your question. I've attached another file that shows more <br />details about our testing at UL. Hopefully it will address your questions. <br />URBK means (in DPM language) "Urethane Repair Boot Kit". The " 10-4.6x2.0" means 10 stud repair <br />boot with a 4.6" to 2.0" reducer. The "Kit" includes the clamps, tech screws, & instructions. <br />We use a product in the Urethane family called "Pellethane" as the base material for what we call our <br />"Fuel -Thane" (DPM Language again). The exact formula of Pellethane is described on page 3 of the <br />attached file. We used "U" before the "RBK" because it was less letters for the part number. This <br />material is important to the repair boots because it can be split & bonded back together with our DBB III <br />(or Zip-Tite) solvent welder. <br />On page 4, we show the letter from UL stating our "Split Repair Boots" have passed UL testing and <br />were to be UL Listed. (to this day we are not sure why UL choose that wording and was not more <br />specific about the part numbers associated the parts in the "Split Repair" parts.) <br />On page 6, we show a page that shows they tested our "4S-1.1 Split Bulkhead boot" bonded back <br />together with our "DBB III bonder" and then filled with our "DBF 11" on various surfaces and the results <br />of that testing. <br />The "Repair Boot" is the key part in the split repair kit is made from Fuel -Thane, which can be "solvent <br />welded" back together and is the key part in the "split repair' process. The "4S-1.1 Split Bulkhead boot" <br />being solvent welded back together & passing the testing, implies that all the repair boots "pass' as <br />they are manufactured using the same materials & processes. <br />I hope this helps, if not give me a call. <br />And thanks for trying to set up a meeting. <br />Regards, <br />Mike Bolt <br />Diversified Products Manufacturing Inc. <br />Territory Manager —CA, OR, WA <br />530-534-3966 Office <br />530-680-6084 Cell <br />mikeb@dpm-Ilc.com <br />www.dpm-llc.com <br />From: Garrett Backus [EH] [mailto:gbackus@sjcehd.com] <br />Sent: Friday, August 07, 2009 3:47 PM <br />To: Mike Bolt <br />8/13/2009 <br />