I have been using a lot of sealant recently: 3m silicone and 3m 4200. I just ordered some from Gradysonline.com for $7 to $8 and the price at West Marine is $17. I know West talks about price match, but the store I go to makes a big deal about it. Maybe others can share tips like this to make our boats more affordable. Shipping was a flat $4, or $1.40 per tube. Well worth the cost.