Theatre Design & Technology - Feb 1968 - 32

RECENT DEVELOPMENTS

GARY W. GAISER

A versatile new heat-and-shape thermoplastic material which
speeds and simplifies the making of a wide variety of
set, hand and costume props and molds for the theatre has
been developed. Designated POLYSAR XB-407, the material
is a synthetic rubber which, after heating to 160 0 F, can be
molded by hand to any shape.
Its chief claimed advantage is that it is extremely durable
and easy to work with. Items such as puppets, armour, face
masks, helmets, and animal heads, can be molded from it
in 10 to 15 minutes.

In multiform theatres the absence of flexible seating el iminates many good designs. A development in the State
University of New York offers a solution that might be
adapted to the theatre. In three of its centers, a fixed seat
that operates like a loose chair has been in satisfactory
operation since the fall of 1966. Developed by Herman
Miller, Inc., the design provides a movable and continuous
writing surface whether combined in aisle or continental
seating. For communication auditoria the design allows 21 "
of space for traffic flow in rows behind seats and 27"
from the center of one chair to the next. (Continued on page 35.)

At room temperature, sheets of POLYSAR XB-407 are hard
and semi-rigid. However, when heated to around 160 0 F (in
an oven, very hot water or under a heat lamp) the material
is soft and workable.
After about 10 minutes the material cools and the finished
article becomes hard and rigid, retaining its new shape
perfectly. Modifications can be made by simply heating the
area needing attention and re-working it.
Although XB-407 sticks to itself when dry-heated, it does
not adhere to plaster, clay or metal and, therefore, can be
used over molds made of these materials. Of particular use
is its resilience because it can be formed on molds having
deep undercuts.
POLYSAR XB-407 is available in flame retardant sheets
24" x 24", either 1 / 50th, 1/ 16th or 1/ 8th of an inch
thick and priced, respectively, $4.45, $8.35, and $13.35
per sheet. Its natural Color is grey but it will accept a wide
range of paints and spray-on lacquers. Manufactured by
Polymer Corporation Ltd., Sarnia, Canada, it is available from
Northwestern Costume House, Inc., Minneapolis.

I

Painting a face mask molded from Polysar X B-407.

Typical theatre applications for Polysar XB-407

32

THEATRE DESIGN & TECHNOLOGY I USITT



Table of Contents for the Digital Edition of Theatre Design & Technology - Feb 1968

Contents
Theatre Design & Technology - Feb 1968 - 1
Theatre Design & Technology - Feb 1968 - 2
Theatre Design & Technology - Feb 1968 - 3
Theatre Design & Technology - Feb 1968 - Contents
Theatre Design & Technology - Feb 1968 - 5
Theatre Design & Technology - Feb 1968 - 6
Theatre Design & Technology - Feb 1968 - 7
Theatre Design & Technology - Feb 1968 - 8
Theatre Design & Technology - Feb 1968 - 9
Theatre Design & Technology - Feb 1968 - 10
Theatre Design & Technology - Feb 1968 - 11
Theatre Design & Technology - Feb 1968 - 12
Theatre Design & Technology - Feb 1968 - 13
Theatre Design & Technology - Feb 1968 - 14
Theatre Design & Technology - Feb 1968 - 15
Theatre Design & Technology - Feb 1968 - 16
Theatre Design & Technology - Feb 1968 - 17
Theatre Design & Technology - Feb 1968 - 18
Theatre Design & Technology - Feb 1968 - 19
Theatre Design & Technology - Feb 1968 - 20
Theatre Design & Technology - Feb 1968 - 21
Theatre Design & Technology - Feb 1968 - 22
Theatre Design & Technology - Feb 1968 - 23
Theatre Design & Technology - Feb 1968 - 24
Theatre Design & Technology - Feb 1968 - 25
Theatre Design & Technology - Feb 1968 - 26
Theatre Design & Technology - Feb 1968 - 27
Theatre Design & Technology - Feb 1968 - 28
Theatre Design & Technology - Feb 1968 - 29
Theatre Design & Technology - Feb 1968 - 30
Theatre Design & Technology - Feb 1968 - 31
Theatre Design & Technology - Feb 1968 - 32
Theatre Design & Technology - Feb 1968 - 33
Theatre Design & Technology - Feb 1968 - 34
Theatre Design & Technology - Feb 1968 - 35
Theatre Design & Technology - Feb 1968 - 36
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