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Name: Carlos
Status: student
Grade: 6-8
Location: CO
Country: USA
Date: Fall 2011


Question:
What are considered to be among the earliest adhesives?



Replies:
Carlos

My thought is that the first humans, or even before they became human learned that blood was sticky. Also sap from trees, especially from pine trees, are sticky. Then they specialized from there.

Sincere regards, Mike Stewart


Hi Carlos,

The earliest adhesives were made from naturally sticky substances such as tar, and some types of tree sap. Glues made from processed animal hoofs and fish byproducts were also among the earliest adhesives. If you Google "early adhesives" you will find quite a bit of interesting information on this subject. Regards,

Bob Wilson


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