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Sealants and caulk

Which Construction Adhesive is Best? Let's find out!

Jul 2019 · 15 min · 6 products tested

His winner

3M 5200

It totally dominated the showdown

  1. 1st3M 5200
  2. 2ndF-26
  3. 3rdFlex Seal
Watch on YouTube

Results, round by round

Wood tensile strength

Higher is better, in lb5 of 6 products have agreed numbers, so no leader is marked
  1. 1JB Weld747lbAmazon
  2. 23M 5200539lbAmazon
  3. 3Red Devil287lbAmazon
  4. 4Flex Seal233lbAmazon
  5. 5Gorilla159lbAmazon

Water exposure tensile strength

Higher is better, in lb
  1. 1JB Weld469lbAmazon
  2. 23M 5200402lbAmazon
  3. 3F-26353lbAmazon
  4. 4Flex Seal226lbAmazon
  5. 5Gorilla153lbAmazon
  6. 6Red Devil49lbAmazon

PVC tensile strength

Higher is better, in lb3 of 6 products have agreed numbers, so no leader is marked
  1. 1JB Weld461lbAmazon
  2. 2Red Devil59lbAmazon
  3. 3F-2643lbAmazon

Everything he tested

Results were read from the video's captions by two AI models, and only the numbers both agree on and that he says out loud are shown. Some results appear only on screen in the video. Check the video before you buy.