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Marine Silicone Sealant - PlashLights Mounting Grade

Plash¬ģ 2100¬†is a one-part, moisture-curing RTV (room temperature vulcanizing) acetoxy silicone that cures to a strong, washable, silicone rubber which maintains long-term durability, adhesion and flexibility. Excellent for a marine environment such as adhering our flexible light strips to pontoon boats or under the gunnels. Acetoxy has natural antibacterial properties and is suitable for kitchen and bath areas.¬†¬†NOT TO BE USED BELOW THE WATERLINE.

Non-slumping sealant. Can be applied to vertical or overhead surfaces without flowing or sagging. Because¬†Plash¬ģ 2100¬†is a 100 percent silicone sealant, it has excellent resistance to weathering including ozone, ultra-violet radiation, freeze-thaw conditions and airborne chemicals. ¬†During cure, an acetic acid smell is produced. 250 PSI Tensile, 400 percent Elongation.

A simple bead on the back of the strip light, stick it, wipe away the excess, and your done! ¬†Plash¬ģ 2100 Marine Silicone provides an instant hold for IP68 flexible tape lights. ¬†A temporary fastener may be require and each end until cured as the weight of the wire may pull it off.

Excellent adhesion of our Flexible LED Light Strips to:

  • bedliner
  • sheet metal
  • wood
  • aluminum¬†
  • concrete
  • polycarbonate
  • brick
  • concrete
  • glass
  • fiberglass
  • carbon fiber
  • plastic
  • and more!

This is not regular silicone like the ones sold at the big box stores.¬† Those will not bond with our lights.¬† Even 3M¬ģ 5200 and Life Seal¬ģ will not bond to our flexible LED lights.¬† Our strips must use this Plash 2100 silicone.


  • 100% RTV Silicone with no slump
  • Can be applied overhead or vertically without sag
  • Cures at room temperature and is tacky in 10 minutes
  • Excellent resistance to mother nature including UV, high & low temperature changes including freezing, salt water and airborne chemicals
  • Cures to a strong silicone rubber made to last
  • Instant adhesion to Plash Flexible Light Strips


Customer Reviews

Based on 2 reviews
Rev. Rusty Asble
Excellent product…

Perfect for my setup.

Steve Fayden

Marine Silicone Sealant - PlashLights Mounting Grade