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Trial Number 1

Client Number 286

Project Number 1

Trial Purpose:

To screen potential cleaning products for removing paint/resin from steel parts

Date Run:

11/19/2007

Experiment Procedure:

Seven products from the previous trial and 7 new products were identified using the labs online database, www.cleanersolutions.org, based on supplied information. One hundred milliliters of each full-strength product was placed in a 200 ml beaker, except Micro 90, where 10 and 20 % solutions were used. A small piece of cured paint taken from a supplied part was placed in the beaker and they were put in a basket and lowered into a large immersion tank and heated to 120 F.

The paint was allowed to sit in the solution to determine what effect the cleaning products would have. Observations were made at 15, 30, 60 and 120 minute intervals. Any signs of interaction between paint and cleaner were recorded. The solutions with the resin in them were then cooled and let to sit overnight. Observations were recorded next morning.

Trial Results:

Product Initial Appearance and observations
Micro 90 10% Clear
15 min Fizzing
30 min Resin slightly softened
60 min NC
120 min NC, soln slightly tinted amber
overnight NC
   
Micro 90 20% Clear
15 min Fizzing, soln cloudy
30 min Resin slightly softened, less than 10% soln
60 min NC
120 min NC
overnight NC
   
Improclean 3800 Clear
15 min Streaks of brown in soln
30 min Resin slightly softened, soln darker brown in color
60 min Clear gel forming in soln. Resin softened. Soln turning darker in color
120 min More gel formation and color of soln darkening (more dissolving)
overnight More gel
   
Super Stripper Purple
15 min Soln separated in to light and dark layers
30 min Resin softening. Soln separated still & slightly darker
60 min Soln still separated and resin slight softened but still hard
120 min Soln darker and not separated. Resin same
Overnight NC
   
Cycle Strip Clear slight yellow
15 min Started to dissolve paint, very aggressive fizzing
30 min Foaming and fizzing, turning brown
60 min Still dissolving paint
120min Same
Overnight No fizzing
   
EnviroCare Floor Clear
Stripper  
10 min Some dissolving
20 min Darker and some fizzing
30 min Some fizzing
45 min Little fizzing
60 min No fizzing
   
Green Solutions Clear
10 min Started to dissolve paint
20 min Moderate fizzing
30 min Some fizzing
45 min Little fizzing
60 min No fizzing, paint softer
   
AK 225 Clear
15 min No Change
30 min Resin slightly softened
60 min No change
120 min No change
Overnight No change
   
Vertrel XP 10 Clear
15 min Softened resin slightly
30 min No change
60 min NO change
120 min Resin soft, easy to pull apart
Overnight No change
   
Isopropyl alcohol Clear
15 min No change
30 min Resin softened slightly
60 min No change
120 min No change
Overnight No change
   
HFE 7100 Clear
15 min Resin slightly softened
30 min No change
60 min No change
120 min No change
Overnight No change
   
OS 30 Clear
15 min Resin slightly softened
30 min No change
60 min No change
120 min No change
Overnight No change
   
Microcare MCA Clear
15 min Resin slightly softened
30 min No change
60 min No change
120 min No change
Overnight No change
   
Ensolve Clear
15 min Resin softened slightly
30 min No change
60 min Resin bubble is 3x starting size
120 min Softer, can squeeze bubble with hands
Overnight bubble is brittle, can break with hands

Success Rating:

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

Conclusion:

All products showed some promise. Ultrasonics did no better overall on the resin pieces then immersion. Six will be chosen for further, more extensive testing based on performance, EH&S and potential costs to the customer.

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