Log Jam chinking by Sashco

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Log Jam chinking by Sashco is a flexible sealant that is used to seal the joints of log homes. No matter what type of log property you own, it is important to use chinking, a synthetic mortar, to keep the log joints sealed. We sell single tubes or broken cases of Log Jam.

Synthetic mortar chinking for your log home or cabin. Sashco Log Jam chinking for sale is a synthetic mortar chinking that prevents cracks & protects log homes from wind, bugs, dust, rain & pollen. All of Sashco’s products are formulated to be compatible with one another. When their chinking and caulking are used with our stains, we give the chinking and caulking a limited lifetime warranty.

The standard for synthetic chinking for log homes. Largest stocking dealer of Sashco Log Jam chinking

  • Authorized Sashco dealer
  • Free shipping
  • We stock and ship 5 gallon pails
  • Full cases
  • Single 30 oz tubes
  • Lowest prices online


Sashco Log Jam chinking comes in 8 colors – Free Shipping

Sashco Log Jam chinking perma-chink Permachink Perma chinking

Sashco Log Jam chinking comes in 8 colors

  • Mortar White
  • White White
  • Buff
  • Tan
  • Woodtone Cedar
  • Dark Brown
  • Gray
  • Light Gray
Sashco Log Jam Chinking dealer

General coverage estimator

Coverage Rates per 5 Gallon Pail of chinking:

  • 1/2″‘ Wide Chinking Joint x 1/4″ Depth = 770 Lineal Feet
  • 1” Wide Chinking Joint x 1/2″ Depth = 195 Lineal Feet
  • 1 1/2″ Wide Chinking Joint x 1/2″ Depth = 125 Lineal Feet
  • 2″ Wide Chinking Joint x 1/2″ Depth = 95 Lineal Feet
  • 3″ Wide Chinking Joint x 1/2″ Depth = 65 Lineal Feet
  • 4″ Wide Chinking Joint x 1/2″ Depth = 45 Lineal Feet

Sashco online calculator 

Benefits of Sashco Log Jam

  • Tightly grips to all species of wood including oily woods like cedar
  • Will not pull away from log surfaces
  • Will remain elastic and not tear up under normal log movement conditions, up to 100% in joint movement
  • Compatible with most sealers and preservatives
  • Protects from Log Rot
  • Not intended to be used as stucco

Difference between Sashco Log Jam chinking and Log Builder

  • Sashco Log Builder is smooth
  • Log jam has a texture to it
  • Only comes in 3 colors
  • Log builder comes in 10.5 oz tubes

Sashco Log Jam® Chinking benefits include:

  • Stretches up to 250% of original joint size without tearing
  • Textured to simulate old-time mortar
  • Easy to smooth and cleans up with water
  • Superior early water resistance
  • Won’t melt Styrofoam® bead board – no more bumpy, unsightly chink lines
  • Used on thousands of homes worldwide since 1985
  • Freeze-thaw stable – OK to leave in your truck or garage overnight

Don’t forget to order backer rod to save on Log Jam chinking product use


Process of Sashco Log Jam chinking

How to apply Chinking

Make sure that you have read our measurement guide to make sure that you have the right nozzle size and thickness. Start by lubricating your tools with a silicone type spray. Then put nozzle end of the gun into the bucket of chinking and pull the activator rod. This will suck the chinking into your gun. When applying your chinking for log homes, you will want to check with the manufacturer for the recommended thickness.

On average you want your thickness to be between 3/16” and 1/4″ if it is to thick it will flake and if it is to thin it will break. Once you apply your chinking, use a foam brush or spatula to go over your chinking with smooth strokes in one direction. It is important to use plenty of water or a release agent. If you use a release agent, then be careful not to use too much as it will affect your chinking. Make sure that the chinking is adhering to the top and bottom really well.

Sashco Log Jam chinking vs Perma Chink

  • Synthetic sealant used to seal joists of logs
  • Very flexible
  • Mortar like
  • Used in place of caulking
  • Protects log homes or log cabins
  • Prevents moisture damage
  • Both help eliminate heat loss

Use backer rods with Log cabin joints

  • Use on all joints over 1/4″
  • Joints over 1/4″ whenever backer rod is NOT used it will crack in center
  • Saves on chinking cost

Same day shipping on all orders

Common search terms

  • Perma-Chink chinking
  • Chinking dealers near me
  • Best Chinking
  • Sikkens caulk
  • Home Depot or Lowes chinking
  • Where to buy chinking
  • Log Jam chinking Buff

Additional information

Weight 42 lbs
Dimensions 1 × 1 × 1 in

5 gallon pail, 30 oz tube, 30 oz box of 10


White White, Mortar White, Buff, Tan, Light Gray, Gray, Woodtone Cedar, Dark Brown