J U N E 1 9 4 7

. . 25ΟΟ lbs. tensile strength minimum

. . dry, non-tacky film

. . no adding of vulcanizing agents . . . no heat treat­ment necessary other than drying

PROPERTIES 1. Dried film tensile strength 2500 lbs. per sq. in. minimum

2. Dried film ultimate elongation. . . . 7 0 0 % to 8 0 0 %

3 . Viscosity Thin

4 . Specific gravity 1.012

5. pH Value 9.3 to 9.8

6. Solids content 3 3 %

APPLICATION 1. Back coating of rugs and fabrics to impart non-slip and fibre

binding characteristics.

2 . Coating and impregnating of fabric, paper and wadding for strength, water resistance, and base for further coating.

3 . Preparation of molds utilizing properties of flexibility and free­dom from further heat treatments.

4 . Dipped goods where deposition of film is complete on drying.

5 . Adhesive for paper, fabric and leather where bond is improved by film deposit of cured Buna S.

6. As an additive to natural latex, as well as to buna and neoprene, for extension and modification.

v.s. — It is proposed to supply pre-vulcanized Buna

S Latex in a more concentrated form if the de­mand is great enough to warrant it.

Write for detailed data sheet.

UNION BAY STATE Chemical Company Inc.

50 HARVARD STREET, CAMBRIDGE 42, MASS.

NOW... Buna S Latex,

PRE-VULCANIZED (UBS B-1700)

USB

35 A

T h e W o r l d ' s

Fitness L a b o r a t o r y B O X T Y P E F U R N A C E

LINDBERG Lindberg Engineering Co., Chicago. Manu­facturers of furnaces, hot plates and carbon determinators for the modern laboratory.

SOLD E X C L U S I V E L Y T H R O U G H LABORATORY E Q U I P M E N T DEALERS