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Toxics Use Reduction Institute · Surface Solutions Laboratory
 
Toxics Use Reduction Institute




Surface Solutions Laboratory

Trial Report



Trial Number 4

(Client Number 155, Project Number 1)

Trial Purpose: Evaluating cleaners for removal of 590 adhesive.

Date Run: 08/23/01

Experiment Procedure:
Five cleaners were selected based on the previous trials. A sixth cleaner was also evaluated based on client
request (590 Stripper). Luminox was used diluted to 30% with DI water in a 250 ml beaker. The 590 Stripper was made up according to client specifications, 5 oz into 1000 ml beaker. The remaining four cleaners were used at full
strength. DS 108 was heated to 100 F and the other five were heated to 140 F on a hot plate.
Eighteen preweighed ceramic coupons were coated with the Crystalbond 590 by heating the adhesive with a heat gun. After cooling to room temperature, "dirty" weights were measured. Three coupons were cleaned in each solution for 60 minutes. Observations were made after 10, 40 and 60 minutes.

Trial Results
Two products, Buckeye Shopmaster and Ecolink Safe Strip, removed nearly all of the Crystalbond 590.  Two other 
products, Dynamold DS 108 and Aremco 590 S Stripper removed over 80% of the contaminant. See Table 1 below 
for the efficiencies for each cleaner.
Table 1 Calculated Effectiveness
Cleaner            Coupon 1   Coupon 2  Coupon 3  Std Dev
Luminox            -18.08        -2.59         2.57           10.75
DS 108               95.32      85.73        82.62            6.62
Shopmaster RC  96.08      97.88        99.08            1.51
Safe Strip         100.03      99.89        99.98            0.07
DBE-4                18.83      18.91        20.55            0.97
590 S                 81.25      98.15        81.44            9.71

Observations made at the three cleaning intervals are listed below in Table 2.

Table 2.  Observations
Time Interval     10                               30                                            60
Luminox             little dissolving            no change                              no change
DS 108              turning tan                  softened-cloudy tan            same
Shopmaster RC soft-light yellow color   dark yellow-bulk has fallen off cloudy dark yellow
Safe Strip           turned cloudy brown  all clean
DBE-4                soft-light yellow color  soft-yellow                           same
590 S                 soft-turned red           dark red-1 coupon nearly clean cloudy dark red-1 completely cleaned


Success Rating
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.

Conclusion
The four effective products, Shopmaster RC, Safe Strip, DS 108 and Crystalbond 590 S Stripper will be evaluated in removing reed wax.