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Historic Preservation - Technical Procedures

Spectitle:

Removing Linoleum Adhesive From Floors

Procedure code:

0965001R

Source:

Ohj - Shirley Maxwell & James C. Massey, 9/30/92

Division:

Finishes

Section:

Resilient Flooring

Last Modified:

02/24/2012

Details:

Removing Linoleum Adhesive From Floors



REMOVING LINOLEUM ADHESIVE FROM FLOORS


PART 1---GENERAL

1.01 SUMMARY

    A.   This procedure includes guidance on removing the mastic
         adhesive left behind when linoleum flooring has been
         removed.

    B.   Linoleum flooring was very popular from 1863 to 1974.  It
         was used historically as an original floor treatment in
         some GSA buildings.  Linoleum's chief ingredient was
         linseed oil, pressed from flax seed, which became a
         tough, elastic material when exposed to air.  The process
         essentially consisted of mixing linseed oil and gum with
         ground cork or wood flour, and pressing it onto burlap or
         canvas.  It was then glued down to concrete or wood
         floors using a mastic cement.

    C.   See 01100-07-S for general project guidelines to be used
         along with this procedure.  These guidelines cover the
         following sections:

         1.   Historic Structures Precautions

         2.   Submittals

         3.   Quality Assurance

         4.   Delivery, Storage and Handling

         5.   Project/Site Conditions

         6.   Sequencing and Scheduling

         7.   General Protection (Surface and Surrounding)

         These guidelines should be reviewed prior to performing
         this procedure and should be followed along with
         recommendations from the Regional Historic Preservation
         Officer (RHPO).


PART 2---PRODUCTS

2.01 MATERIALS

    A.   Clean, potable water

    B.   Vinegar

    c.   Citrus degreasing solvent such as "Limo Sol", or approved
         equal.

    D.   Dry ice

    E.   Chemical solvent such as isopropyl alcohol, paint
         thinner, xylol, lacquer thinner, or paint stripper.

2.02 EQUIPMENT

    A.   Heat lamp or hot-air gun

    B.   Putty knife or scraper


PART 3---EXECUTION

3.01 ERECTION, INSTALLATION, APPLICATION

    NOTE:  A WATERPROOF GLUE IS USUALLY APPLIED AT THE EDGES AND
    SEAMS OF THE LINOLEUM; THE CENTER OF THE FELT LAYERS IS
    USUALLY ATTACHED WITH A WATER SOLUBLE PASTE.

    A.   Soak the mastic area in hot water for 20-60 minutes or
         until soft.  

    B.   If this is not effective, try adding vinegar or high-
         strength citrus degreasing solvent to the water and then
         soak for 20-60 minutes until soft.

    C.   If mastic still will not soften, try applying heat to the
         surface using a lamp or hot-air gun.

         -OR-

         Try freezing the mastic with dry ice to break the bond
         with the substrate.

    D.   If no other methods are effective in softening the
         mastic, test a chemical solvent on the area.

         NOTE:  BE SURE TO TEST IN AN INCONSPICUOUS AREA TO
         DETERMINE APPROPRIATE CHEMICALS AND STRENGTHS BEFORE
         PROCEEDING WITH CLEANING.

    E.   Scrape away the softened mastic using a putty knife or
         garden edger.

                         END OF SECTION