Trial #7

Trial #7

Second attempt to find other alternative cleaners for the cleaning of phenolic resin.

1999

6

2

148

148

Coupon

04/01/1999

120.00

Immersion/Soak

Jason Marshall

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Adhesive
Resins/Rosins

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Shake method
Visual

Five products were selected for the cleaning trial based on vendor information. Twenty-five milliliters of each cleaner were poured into a 30 mL vial. The contaminant was placed into each beaker. Each vial was covered with the supplied cap and shaken for 30 seconds. Observations were recorded. The shaking and observation cycle was repeated. One sample from the previous trial was heated to 120 F in a hot water bath so that the product could be evaluated at an elevated temperature.
SUBSTRATE MATERIAL: None
CONTAMINANTS: Phenolic based Resin

Savogran HD 34 started to dissolve the contaminant from the paper towel within the first five minutes, which was faster than the previous trials time of 30 minutes.  For the rest of the products, no product showed signs of dissolving the contaminant until 2 hours had passed.  After sitting for three days, this same cleaner had turned a very dark red, much darker than the HD 34 color. Table 1 lists the observations made at each time interval.

Table 1.  Cleaning Observations

Savogran HD 34 was shown to have an increased dissolving rate when heated to 120 F.  Gemtek SC Supersolve was also proven to be able to dissolve the resin after a long period of time.  This product will be tested with an increased temperature just like HD 34.

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