Air Sealing With Caulk, Filler, Mastic and Spray Foam

Our good friends at Alliance To Save Energy have an interesting way of describing the effects of drafts caused by unsealed gaps. They say it's like using your air conditioner to cool the whole neighborhood! Even well insulated homes often have these gaps. Typically, they are found around windows and doors. But any opening where plumbing, duct work or electrical wiring comes in through walls, floors and ceilings can also be air leaking culprits! Sealing these gaps can easily save you 20% on heating and cooling costs. Caulk is useful where gaps are small (narrow cracks and gaps up to a few millimeters) and where a more finished look is desired. Mastic is better for repairing damaged and leaking air ducts and sealing conditioned spaces from air infiltration. Spray Foam easily fills larger gaps and expands to fill spaces, as well as provide some insulation. Either way, we’ve got your gaps covered here!

Please take a look at these links for complete details, pricing & availability!



Boss Fireblock Draftstop Sealant Caulk 136 03221PK10, 10.1oz
Boss Fireblock Draftstop Sealant Caulk 136 03221PK10, 10.1oz

Boss Fireblock Draftstop Sealant Caulk 814 03419RD10, 10.1oz
Boss Fireblock Draftstop Sealant Caulk 814 03419RD10, 10.1oz

DAP Concrete Waterproof Filler & Sealant 10.1oz Gray
DAP Concrete Waterproof Filler & Sealant 10.1oz Gray

DAP High Heat Mortar 10.1oz black
DAP High Heat Mortar 10.1oz black

DAP 18268 Waterproof Roof Sealant 10.1oz black
DAP 18268 Waterproof Roof Sealant 10.1oz black

DuPont 100% Silicone Caulk 9.8oz 07630-07632
DuPont 100% Silicone Caulk 9.8oz 07630-07632

DuPont Airtite Sealant 07873 10.1oz, clear
DuPont Airtite Sealant 07873 10.1oz, clear

DuPont Airtite Sealant 07871 10.1oz, white
DuPont Airtite Sealant 07871 10.1oz, white

GE All Purpose 100% Silicone Caulk 10.1 oz
GE All Purpose 100% Silicone Caulk 10.1 oz

Clear or White


GE Max 2500 Caulk 22566 10.1oz, white
GE Max 2500 Caulk 22566 10.1oz, white

GE Max 3500 Caulk 22608 10.1 oz, clear
GE Max 3500 Caulk 22608 10.1 oz, clear

RCD #6 Mastic® Low-High Velocity Air Duct Sealant, gallon
RCD #6 Mastic® Low-High Velocity Air Duct Sealant, gallon

RCD #6 Mastic® Low-High Velocity Air Duct Sealant, 2 gallon pail
RCD #6 Mastic® Low-High Velocity Air Duct Sealant, 2 gallon pail

RCD #6 Mastic® Sealant Calk Tube, 11oz
RCD #6 Mastic® Sealant Calk Tube, 11oz

RCD #7 Mastic® Low-High Velocity Air Duct Sealant, gallon
RCD #7 Mastic® Low-High Velocity Air Duct Sealant, gallon

Todol PUR FILL NF12 Insulating Spray Foam Sealant, 12 oz
Todol PUR FILL NF12 Insulating Spray Foam Sealant, 12 oz

Tremco Acoustical/Curtainwall Sealant, quart tube
Tremco Acoustical/Curtainwall Sealant, quart tube

Deluxe Skeleton Caulk Gun 13W868
Deluxe Skeleton Caulk Gun 13W868

Quart Size Skeleton Caulk Gun 125
Quart Size Skeleton Caulk Gun 125

Energy Saving Stuff
Energy Saving Stuff

Build It Green Stuff
Build It Green Stuff


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