Caulk, Silicone And Sealant Are They The Same Or Different? - Building & Construction - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Building & Construction


Thread Tools Display Modes
Old 05-16-2011, 03:11 PM   #1
Join Date: May 2011
Posts: 1
Rewards Points: 10

Caulk, Silicone and Sealant Are they the same or different?

Having seen manufacturer uses different product name such as DAP Sealant, GE Silicone and some are just called caulk. They all are in the tubes and applied to gap and joints. Can you explain weather they are the same or different and how to select the right material?


ask is offline   Reply With Quote
Old 05-16-2011, 03:20 PM   #2
Civil Engineer
Join Date: Mar 2009
Location: Boston
Posts: 5,337
Rewards Points: 4,254

Silicone is a term used for a variety of products with the following chemistry:

A durable synthetic resin with a structure based on chains of alternate silicon and oxygen atoms, with organic groups attached to the silicon atoms.

Sealant is a term based on the verb to seal, meaning a product designed to keep out a fluid, usually water.

Caulk as a noun mean A waterproof filler and sealant, used in building work and repairs. Caulk as a very refers to the installation of caulk.

So caulk and sealant appear to be essentially identical, whereas silicone is a type of sealant or caulk.

How to select the right material. Read the labels very carefully, there are thousands of sealants and caulks out there, they typically are designed for different applications, they have different warranties, different lifespan, different costs, and different application techniques. Only the manufacturer can tell you what type of application they will work on, and sometimes the manufacturers do not tell you the whole story.


Daniel Holzman is online now   Reply With Quote
Old 05-16-2011, 04:59 PM   #3
Join Date: Jun 2009
Location: atl & hilton head
Posts: 4,374
Rewards Points: 4,330

never thought about that but it is confusing, isn't it,,, generally speaking, most sealants are installed over a bondbreaker meaning they only adhere on either side of something ( pavement joint, building stress relief jnts ),,, caulks adhere on all surfaces but do not weather the expansion/contraction stress as well.
stadry is offline   Reply With Quote
Old 05-16-2011, 11:45 PM   #4
Registered User
Join Date: Mar 2009
Posts: 11,292
Rewards Points: 4,650

Don't use a caulk when you really need a flashing or backer rod and caulk;

If any ads are present below my answer or words underlined/colored, I do not condone/support/use the product or services listed/linked to, they are there without my consent.
17,000 dryer fires a year, when did you last clean the inside of the dryer near motor or the exhaust ducting?
Gary in WA is offline   Reply With Quote
Old 05-18-2011, 06:33 AM   #5
Mold!! Let's kill it!
Join Date: Feb 2008
Location: Central Pennsylvania
Posts: 2,849
Rewards Points: 2,012

Sealant and Caulk are interchangable terms for the most part. As stated, silicone happens to be the base material for one type of caulk/sealant, as are urethanes, latex rubber, butyl, poly-sulphides and a few other compounds. It is important to select the right caulk for the material being sealed and to create a joint that works with the properties of the material and the caulk. Here is a link that will show some typical joints.
Maintenance 6 is offline   Reply With Quote

caulk , silicone and sealant

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Painting over silicone caulk?? jschack Painting 34 06-15-2013 04:33 AM
silicone sealant has turned orange bobbysgirl Building & Construction 1 11-26-2010 11:00 AM
Silicone sealant RSDelacruz Kitchen & Bath Remodeling 1 08-01-2010 02:03 PM
Removal of Uncured (still soft) silicone sealant Hardy Building & Construction 2 01-23-2010 06:54 AM
How to seal my attic access - airtight? akoch General DIY Discussions 4 09-08-2008 08:03 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1