Theatre Design & Technology - Spring 1979 - 18

3. Methylene chloride solvent
4. Denatured alcohol
5. Clean wiping rags
6. Mixing containers
7. Low sudsing detergent.
For small jobs, the only tools needed are linoleum knives
and adhesive-type notched trowels.
Adhesive is mixed in the following proportions:
4 parts epoxy Part A
2 parts epoxy Part B
1 part methylene chloride.
All application and work with adhesive should be done at
temperatures exceeding 70°F, and methylene chloride
should never exceed 15% of the total epoxy adhesive mix.
After adhesive has been applied and surfaces joined, pressure should be applied (approx. 150 Ibs.) to eliminate any air
bubbles.
Removal of air bubbles after adhesive has cured required
the following (courtesy Robbins Flooring):
1. At the edge of the bubble, insert the point of a linoleum
knife through the thickness of the material making a very
small slit just large enough to permit the escape of air. Rotate
the knife approximately 90°.
2. Using an epoxy adhesive syringe with a long heavy
. needle, insert the needle through one side of the bubble and
inject a small amount of adhesive into the area.
3. Remove the syringe needle and knead the bubble to
distribute the adhesive uniformly over the entire area of the
sub-floor directly beneath the bubble. Then press on the
bubble area from the side opposite the knife point, working
toward the knife point and cut, so that adhesive is forced to
the side of the slit and, preferably, up the walls of the slit so
that you are certain that a sufficient amount of adhesive has
been applied.
4. Remove the knife and wipe up any excess epoxy that
might have been forced into the surface of the material.
5. Apply a weight such as a small sand bag, directly over
the bubble and allow to remain overnight to be sure that the
bubble portion does not return. After overnight curing, the
poly-vinyl will be well adhered.
NOTE: If sand bags or similar flowable material are used
over the bubble area, place them on a stiff, flat board larger
than the size of the bubble to eliminate the possibility of the
weight creating a circular ridge like a crater, at the bubble
edge. Concentrated pressure may cause the adhesive to
be forced to the perimeter of the bubble where it will cure
to a hard state. If a ridge occurs, it will telegraph through
the thickness of the material and will be noticeable on the
surface, thereby detracting from the appearance.

All photos by Bill Watts.

Notes

1 Financing for the study was provided through a grant from the
University of Arizona Office of Research.
, Poly-vinyl flooring can be painted, and every manufacturer has
his own specially formulated paint for purposes of lining and painting
small areas such as basketball center circles. Large areas calling for
a second color are produced not by painting but by installing actual
pOly-vinyl in the desired color. The product can be manufactured in a
variety of colors. There is ample reason to doubt the practicality of
pOly-vinyl as a floor which must be repainted often. We did not test
the special lining paint, but its durability in the athletic arena is
exceptional. However, the special paint is prohibitively expensive for
use over large areas, or for frequent changes.

16

Theatre Design & Technology

USITT/Spring, 1979



Table of Contents for the Digital Edition of Theatre Design & Technology - Spring 1979

Contents
Theatre Design & Technology - Spring 1979 - 1
Theatre Design & Technology - Spring 1979 - 2
Theatre Design & Technology - Spring 1979 - 3
Theatre Design & Technology - Spring 1979 - Contents
Theatre Design & Technology - Spring 1979 - 5
Theatre Design & Technology - Spring 1979 - 6
Theatre Design & Technology - Spring 1979 - 7
Theatre Design & Technology - Spring 1979 - 8
Theatre Design & Technology - Spring 1979 - 9
Theatre Design & Technology - Spring 1979 - 10
Theatre Design & Technology - Spring 1979 - 11
Theatre Design & Technology - Spring 1979 - 12
Theatre Design & Technology - Spring 1979 - 13
Theatre Design & Technology - Spring 1979 - 14
Theatre Design & Technology - Spring 1979 - 15
Theatre Design & Technology - Spring 1979 - 16
Theatre Design & Technology - Spring 1979 - 17
Theatre Design & Technology - Spring 1979 - 18
Theatre Design & Technology - Spring 1979 - 19
Theatre Design & Technology - Spring 1979 - 20
Theatre Design & Technology - Spring 1979 - 21
Theatre Design & Technology - Spring 1979 - 22
Theatre Design & Technology - Spring 1979 - 23
Theatre Design & Technology - Spring 1979 - 24
Theatre Design & Technology - Spring 1979 - 25
Theatre Design & Technology - Spring 1979 - 26
Theatre Design & Technology - Spring 1979 - 27
Theatre Design & Technology - Spring 1979 - 28
Theatre Design & Technology - Spring 1979 - 29
Theatre Design & Technology - Spring 1979 - 30
Theatre Design & Technology - Spring 1979 - 31
Theatre Design & Technology - Spring 1979 - 32
Theatre Design & Technology - Spring 1979 - 33
Theatre Design & Technology - Spring 1979 - 34
Theatre Design & Technology - Spring 1979 - 35
Theatre Design & Technology - Spring 1979 - 36
Theatre Design & Technology - Spring 1979 - 37
Theatre Design & Technology - Spring 1979 - 38
Theatre Design & Technology - Spring 1979 - 39
Theatre Design & Technology - Spring 1979 - 40
Theatre Design & Technology - Spring 1979 - 41
Theatre Design & Technology - Spring 1979 - 42
Theatre Design & Technology - Spring 1979 - 43
Theatre Design & Technology - Spring 1979 - 44
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https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1966May
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1966Feb
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1965Dec
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1965Oct
https://www.nxtbook.com/nxtbooks/hickmanbrady/tdt_1965May
https://www.nxtbookmedia.com