Preco® Silicone Sealants

Preco® SET-FAST SILICONE SEALANT

Preco® Set-Fast is a premium general use single-component room temperature vulcanizing RTV acetoxy cure silicone sealant. Available in clear or white.

Data Sheet

Applications
Properties
Packaging
Instructions & Storage

Set-Fast Silicone can be used in various applications including:

Precast concrete
Transportation and sanitary seals
Industrial gasket
General construction
Kitchen & bath

Physical Properties

Item	Properties	Test Method
Cure System	Acetoxy	–
Movement Capacity	±25%	ASTM C-791
Modulus	Medium	ASTM D-412
Physical Properties (Cured)	Rubber	–
Extrusion Rate, g/min.	.97	ASTM C-1183
1/8″ orifice @ 50 psi		Modified
Temperature Range	-65°F to 400°F	Internal Method
Intermittent Temperature	450°F	Internal Method
Accelerated Weathering (10,000hrs)	No Change	QUV Weatherometer
Skin Time (min.)	10	MNA Method
Tack Free Time (min.)	20	ASTM C-679
Cure Rate	1/8″ per 24hrs	MNA Method
Tensile Strength	220	ASTM D-412
Elongation %	570	ASTM D-412
Durometer Shore A	17	ASTM C-661
Dielectric Strength kv/mm (v/mil)	20 (500)	–
Dielectric Constant at 100 Hz	2.9 @ 60	–
Shelf Life (months)	12	–
Volatile Organic Content (VOC)	29 g/l	–

Packaging

10.3oz Tubes. 24 Tubes/Carton or 80 Cartons/Pallet.

Available in clear and white.

Instructions

Remove dirt, grease, and moisture from surface. Allow to dry thoroughly.
Cut nozzle at angle to desired bead size.
Apply with a Preco® Dispensing Gun, push sealant ahead for uniform bead, thickness should be limited to 1/4″ or less.
Tool sealant to desired thickness immediately before skin forms.
Skin time approximately 10 minutes. Tack free in about 20 minutes. Normal cure time 24 hours.
Length of time for full cure depends upon thickness of application and other factors including temperature & humidity.
See data sheet for complete information.

Storage & Shelf Life

Material must be stored under controlled and dry environment. Be sure to rotate inventory. Use within 12 months from manufacture date.

Preco® NEUTRAL CURE SEALANT – 100% SILICONE

Preco® Neutral Cure Sealant is a premium one-component, non-sag, permanently flexible neutral cure 100% silicone sealant. It is engineered to deliver excellent adhesion to common building materials including but not limited to vinyl, glass, aluminum, wood, and sheet metal without the need of a primer. Available in clear or white.