Description

RTV11, RTV21 and RTV41 silicone rubber compounds are general purpose two-part silicone elastomers. They are supplied ready-to-use with a base

compound and DBT (dibutyl tin dilaurate) as the standard curing agent. DBT is suitable for most applications, however other catalysts are available to

facilitate deep section cure, faster cure and automated mixing.

These silicone rubber compounds are similar in physical properties except for viscosity and color:

Key Features and Benefits

■ Work time and cure rates can be varied

■ Room temperature cure

■ Composition free of solvents and solvent odor

■ FDA compliance - RTV11 and RTV41 silicone rubber compounds can be used in food contact applications other than contact with acidic foods where FDA

regulations apply.

■ Excellent adhesion capabilities with primer

■ Excellent release properties

■ Retention of elastomeric properties at temperatures from -54°C (-65°F) up to 204°C (400°F) continuously, and up to 260°C (500°F) for short periods of time.

Typical Physical Properties

UNCURED PROPERTIES OF RTV BASE COMPOUNDS

UNCURED PROPERTIES OF RTV BASE COMPOUNDS WITH 0.5% DBT CURING AGENT ADDED

CURED PROPERTIES

(0.5 wt. % DBT Curing Agent added, cured 7 days @ 25°C (77°F) and 50% R.H.)

Grade Color Typical Viscosity

RTV11 white 11,000 cps

RTV21 pink 26,000 cps

RTV41 white 39,000 cps

RTV11 RTV21 RTV41

Color White Pink White

Consistency Easily Pourable Pourable Pourable

Viscosity, cps 11,000 26,000 39,000

Specific Gravity 1.19 1.32 1.31

 RTV11 RTV21 RTV41

Work Time @ 25°C (77°F), hrs 1.5 1 1

Cure Time @ 25°C (77°F), hrs 24 24 24

RTV11 RTV21 RTV41