The Official Wine Stain Remover of the Society of Wine Educators
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Independent Study

Independent Lab Report

Stain Rx® 
Tested by an Independent Lab

CAMBRIDGE DIAGNOSTIC PRODUCTS, INC
6880 NW 17TH AVENUE
FORT LAUDERDALE, FLORIDA 33309
 

STAIN REMOVAL STEPS:

  1. Remove excess stain. Apply Stain Rx directly to the spot, work the spotted material into itself and then rinse with water. Repeat if necessary. Launder as usual. If stain is not completely removed, use step 2.
  2. Soak the stained area in a small amount of Stain Rx for up to 1 hour, rinse with the water and then launder as usual

TEST RESULTS: WOVEN FABRIC - 100% COTTON

CLEANING SOLVENT: STAIN Rx

TYPE OF STAIN:

AFTER 5 MINUTES AGING

AFTER 24 HOURS AGING

 

Hawaiian Fruit Punch

Class 5.0

Class 5.0

Black Mascara (Cover Girl)

Class 5.0

Class 5.0

Cranberry Juice (Ocean Spray)

Class 5.0

Class 5.0

Tomato Sauce

Class 5.0

Class 5.0

Vanilla Extract

Class 5.0

Class 5.0

Blood

Class 5.0

Class 5.0

Iodine

Class 5.0

Class 5.0

Beet Juice (Libby’s)

Class 5.0

Class 5.0

Coffee

Class 4.5

Class 4.0

Betadine

Class 5.0

Class 5.0

Balsamic Vinegar

Class 5.0

Class 5.0

Hibiclens

Class 5.0

Class 5.0

Tea

Class 5.0

Class 4.5

Mushroom Gravy

Class 5.0

Class 5.0

Grass

Class 5.0

Class 4.5

Grape Juice (Welch’s)

Class 5.0

Class 5.0

Red Lipstick (Revlon)

* * Class 4.5     

* * Class 4.0     

Yellow Mustard (French’s)

* * Class 3.5     

* * Class 2.0     

Hair Dye

* * Class 3.0     

* * Class 1.0     

Red wine

Class4.5

* * Class 4.0     

Raspberry

Class4.5

* * Class 4.0     

Strawberry

Class4.5

* *Class 3.5     

Synthetic Urine

Class 5.0

Class 5.0

**NOTE: ADDITIONAL STAIN REMOVAL, AS PER STEP 2, WAS USED TO REMOVE THESE STAINS

RATING SYSTEM:

  • Class 5 - Complete Removal
  • Class 4 - Good Removal, Traces of Stain Remain
  • Class 3 - Moderate Removal, More than 75% Stain Removed
  • Class 2 - Fair Removal, More than 50% Stain Removed
  • Class 1 - Poor Removal, Less than 50% Stain Removed

 

TEST RESULTS: WOVEN FABRIC - 65% COTTON, 35% POLYESTER

CLEANING SOLVENT: STAIN Rx

TYPE OF STAIN:

AFTER 5 MINUTES AGING

AFTER 24 HOURS AGING

Hawaiian Fruit Punch

Class 5.0

Class 5.0

Black Mascara (Cover Girl)

Class 5.0

Class 5.0

Cranberry Juice (Ocean Spray)

Class 5.0

Class 5.0

Tomato Sauce

Class 5.0

Class 5.0

Vanilla Extract

Class 5.0

Class 5.0

Blood

Class 5.0

Class 5.0

Iodine

Class 5.0

Class 5.0

Beet Juice (Libby’s)

Class 5.0

Class 5.0

Coffee

Class 5.0

Class 5.0

Betadine

Class 5.0

Class 5.0

Balsamic Vinegar

Class 5.0

Class 5.0

Hibiclens

Class 5.0

Class 5.0

Tea

Class 5.0

Class 5.0

Mushroom Gravy

Class 5.0

Class 5.0

Grass

Class 5.0

Class 4.5

Grape Juice (Welch’s)

Class 5.0

Class 5.0

Red Lipstick (Revlon)

* * Class 5.0     

Class 4.0

Yellow Mustard (French’s)

Class 5.0

* * Class 4.0     

Hair Dye

Class 4.5

* * Class 2.0     

Red wine

Class 5.0

Class 5.0

Raspberry

Class 5.0

Class 5.0

Strawberry

Class 5.0

Class 5.0

Synthetic Urine

Class 5.0

Class 5.0

**NOTE: ADDITIONAL STAIN REMOVAL, AS PER STEP 2, WAS USED TO REMOVE THESE STAINS

RATING SYSTEM:

  • Class 5 - Complete Removal
  • Class 4 - Good Removal, Traces of Stain Remain
  • Class 3 - Moderate Removal, More than 75% Stain Removed
  • Class 2 - Fair Removal, More than 50% Stain Removed
  • Class 1 - Poor Removal, Less than 50% Stain Removed

 

TEST RESULTS: UPHOLSTERY FABRIC - 57% COTTON, 43% POLYESTER

CLEANING SOLVENT: STAIN Rx

TYPE OF STAIN:

AFTER 5 MINUTES AGING

AFTER 24 HOURS AGING

Hawaiian Fruit Punch

Class 5.0

Class 5.0

Black Mascara (Cover Girl)

Class 5.0

Class 5.0

Cranberry Juice (Ocean Spray)

Class 5.0

Class 5.0

Tomato Sauce

Class 5.0

Class 5.0

Vanilla Extract

Class 5.0

Class 5.0

Blood

Class 5.0

Class 5.0

Iodine

Class 5.0

Class 5.0

Beet Juice (Libby’s)

Class 5.0

Class 5.0

Coffee

Class 5.0

Class 5.0

Betadine

Class 5.0

Class 5.0

Balsamic Vinegar

Class 5.0

Class 5.0

Hibiclens

Class 5.0

Class 5.0

Tea

Class 5.0

Class 5.0

Mushroom Gravy

Class 5.0

Class 5.0

Grass

Class 5.0

Class 5.0

Grape Juice (Welch’s)

Class 5.0

Class 5.0

Red Lipstick (Revlon)

* * Class 5.0     

* * Class 4.0     

Yellow Mustard (French’s)

Class 5.0

Class 5.0

Hair Dye

Class 5.0

* * Class 2.0     

Red wine

Class 5.0

Class 5.0

Raspberry

Class 5.0

Class 5.0

Strawberry

Class 5.0

Class 5.0

Synthetic Urine

Class 5.0

Class 5.0

**NOTE: ADDITIONAL STAIN REMOVAL, AS PER STEP 2, WAS USED TO REMOVE THESE STAINS

RATING SYSTEM:

  • Class 5 - Complete Removal
  • Class 4 - Good Removal, Traces of Stain Remain
  • Class 3 - Moderate Removal, More than 75% Stain Removed
  • Class 2 - Fair Removal, More than 50% Stain Removed
  • Class 1 - Poor Removal, Less than 50% Stain Removed

 

TEST RESULTS: CARPET OLEFIN

CLEANING SOLVENT: STAIN Rx

TYPE OF STAIN:

AFTER 5 MINUTES AGING

AFTER 24 HOURS AGING

Hawaiian Fruit Punch

Class 5.0

Class 5.0

Black Mascara (Cover Girl)

Class 5.0

Class 5.0

Cranberry Juice (Ocean Spray)

Class 5.0

Class 5.0

Tomato Sauce

Class 5.0

Class 4.5

Vanilla Extract

Class 5.0

Class 4.5

Blood

* * Class 3.5     

Class 3.5

Iodine

Class 5.0

Class 3.5

Beet Juice (Libby’s)

Class 4.5

Class 4.5

Coffee

Class 5.0

Class 5.0

Betadine

Class 5.0

Class 5.0

Balsamic Vinegar

Class 4.0

Class 3.5

Hibiclens

Class 4.5

Class 4.5

Tea

Class 5.0

Class 5.0

Mushroom Gravy

Class 5.0

Class 5.0

Grass

Class 5.0

Class 5.0

Grape Juice (Welch’s)

Class 5.0

Class 5.0

Red Lipstick (Revlon)

* * Class 3.0     

* * Class 3.0     

Yellow Mustard (French’s)

Class 5.0

Class 4.0

Hair Dye

Class 5.0

Class 4.0

Red wine

Class 5.0

Class 5.0

Raspberry

Class 5.0

Class 4.5

Strawberry

Class 5.0

Class 5.0

Synthetic Urine

Class 5.0

Class 5.0

**NOTE: ADDITIONAL STAIN REMOVAL, AS PER STEP 2, WAS USED TO REMOVE THESE STAINS

RATING SYSTEM:

  • Class 5 - Complete Removal
  • Class 4 - Good Removal, Traces of Stain Remain
  • Class 3 - Moderate Removal, More than 75% Stain Removed
  • Class 2 - Fair Removal, More than 50% Stain Removed
  • Class 1 - Poor Removal, Less than 50% Stain Removed

 

COMPATABILITY WITH SPECIFIC SURFACES

CLEANING SOLVENT: STAIN Rx

PROCEDURE: 5 drops of Stain Rx were placed on the surfaces listed below for a time period of 1 hour

Sample:

Color Change

VISUAL EVALUATION

GLASS

Class 5.0

No evidence of surface change noted 

STAINLESS STEEL

Class 5.0

No evidence of surface change noted 

MICA

Class 5.0

No evidence of surface change noted 

PLASTIC

Class 5.0

No evidence of surface change noted 

PORCELAIN

Class 5.0

No evidence of surface change noted 

GOLD / DIAMOND RING

Class 4.5

 

Noticeable evidence of improvement in sheen;
no evidence of deterioration noted 

**NOTE: ADDITIONAL STAIN REMOVAL, AS PER STEP 2, WAS USED TO REMOVE THESE STAINS

RATING SYSTEM:

  • Class 5 - Complete Removal
  • Class 4 - Good Removal, Traces of Stain Remain
  • Class 3 - Moderate Removal, More than 75% Stain Removed
  • Class 2 - Fair Removal, More than 50% Stain Removed
  • Class 1 - Poor Removal, Less than 50% Stain Removed

 

Sample: 
FRUIT COLOR RESISTANCE WHEN COMPLETELY IMMERSE IN STAIN Rx
SOLVENT

TYPE OF STAIN:

TIME TO TURN WHITE
(hours and minutes)

STRAWBERRIES

2.07 **

RASPBERRIES

3.38 **

NOTE: Partial Color Removal Observed in 1 Hour.

** Time of complete color removal