SWIMMING POOL SEALANTS
THORO SYSTEM
WATERPROOFING INC.
1850A Delmar Drive, Folcroft, PA 19032-1414
(610) 583-5502  -  FAX (610) 583-5514
Terms of Use
NOTE: Do not apply sealant or coatings to a frosty, damp or wet surface or when air temperature is below 40°F. (4°C) or the
surface temperature is above 110°F (43°C). Cure times as stated below are based upon standard ambient conditions of 75°F
(25°C), 50% relative humidity. A decrease in ambient temperature will significantly lengthen the cure time. All surfaces, be
they joints or the swimming pooln proper, must be primed with Vulkem 171 Primer at a rate of 100 sq.ft. per gallon.

In joints, install a Backer Rod, 1/8 inch to 1/4 inch (3mm to 6mm) diameter larger than the joint width to all prepared expansion
joints. Set depth of Backer Rod to control the depth of the sealant. (Depth of sealant is measured from the top of the backer
rod to the top of the concrete surface.) Proper depth of sealant is as follows:

For joints 1/4 inch (6.4 mm) to 1/2 inch (12.7mm) wide, the width to depth ratio should be equal. Joints 1/2 inch (12.7mm) wide
or greater should have a sealant depth of 1/2 inch (12.7mm). Minimum joint size is 1/4 inch by 1/4 inch (6.4mm by 6.4mm).

All cracks and joints shall be sealed with Vulkem 116, and tooled flush with the surface.

Sealant can not be submerged for at least 14 days.
Backer Rod
 
Vulkem 171 Primer
Quick drying, one-part, moisture curing primer that seals concrete, plywood and
other porous substrates where Vulkem urethane sealants, membranes or coatings
will be applied.
Vulkem 116
Is an excellent general purpose sealant designed for use in precast, masonry,
window frame perimeters and similar types of construction joints. Vulkem 116 is
suitable for continual immersion in water. Vulkem 116 is designed for exterior and
interior use.
Vulkem 45 SSL
Is formulated for use in expansion joints in sidewalks, swimming pool decks,
terraces, parking decks, plazas, floors and any other horizontal surfaces with
slopes up to 6%. The sealant is suitable for use in continuous water immersion.
The following instructions are provided solely to illustrate some of the services/functions our products can perform.  These instructions are not
intended as technical guidance on product installation or use and should not be relied upon for such purposes.  You should always follow the
manufacturers directions when using or installing any product.