Smooth-On Slacker Silicone Deadener 1 Pint Unit — Softens & Damps Silicone, Reduces Tack

Slacker is a pourable silicone modifier formulated to reduce surface tack, increase softness, and dampen vibration in silicone parts and molds. Supplied in a convenient one-pint unit, this product is intended for professional, industrial, and advanced hobbyist applications where controlling durometer, tack, and feel of silicone elastomers matters. Use it to tune silicone shore hardness, produce muted-surface finishes, and add an internal deadening effect to thin-walled castings.

How does Slacker change the feel and hardness of silicone parts?

Slacker dilutes and plasticizes cured silicone, lowering surface tack and reducing apparent shore hardness when blended correctly. It integrates into RTV and pouring silicones to create softer, more lifelike textures or to achieve a specific tactile response in finished parts.

• Mix ratios alter final softness — small additions subtly soften, higher percentages produce markedly lower durometer.
• Compatible with many addition- and condensation-cure silicones when used per manufacturer guidance.
• Helps eliminate sticky surfaces without introducing abrasives or fillers.

What applications benefit most from this silicone deadener?

Slacker is used where touch, sound, or vibration control is important: special effects props, soft prosthetics, replica skins, vibration-damped components, and thin silicone castings that need a less rigid feel. It is popular in moldmaking and finishing processes to achieve a more natural give and quieter performance.

• Special effects bodies and creature suits needing realistic softness.
• Thin-walled silicone parts that otherwise feel harsh or snap back too quickly.
• Acoustic damping for silicone-mounted components or prop elements.

How do you use Slacker safely and effectively in a workflow?

Work with measured ratios and test small batches first to dial in the desired softness and cure characteristics. Follow manufacturer directions for curing times and compatibility; allow mixed components adequate time to degas and cure at recommended temperatures.

• Pre-test blends at different percentages on small samples before full production.
• Combine with compatible silicone bases and mix thoroughly to avoid uncured pockets.
• Use proper PPE and ventilation—handle as a professional chemical modifier, not a consumer toy.

What should I expect from a one-pint unit in production terms?

The one-pint unit is sized for trial runs, small jobs, or touch-up work in a studio or shop. It provides enough material to perform multiple blend tests or to modify several small silicone components without committing to a larger volume.

• Suited for prototyping, short runs, or specialty silicone adjustments.
• Compact packaging for studio storage and controlled dispensing.
• Use up or store per Smooth-On recommendations to preserve performance.

Who is this for? Smooth-On Slacker 1 Pint is aimed at professional moldmakers, special effects artists, prop shops, advanced hobbyists, and engineers who require fine control over silicone tactile properties and acoustic behavior. If you need to reduce tack, soften silicone parts, or tune the feel of finished castings, this product gives a precise, testable way to adjust silicone performance in small-batch or studio environments. Not intended for consumer crafts without appropriate experience—follow all technical safety and compatibility guidance from Smooth-On for best results.