Articles Tagged with ''bonding''

Ask Dr. Dave

Could you please suggest an epoxy resin, along with a hardener and accelerator, to use as a raw material in the production of a high-temperature-resistant adhesive?

Dr. Dave provides details regarding the use of inorganic vs. organic adhesives for high-temperature applications.
Dave Dunn, Ph.D.
Dave Dunn Ph.D.

It may be a one- or two-part system. We need temperature resistance up to 500˚C, and the adhesive will be applied to fill small gaps in a hot mild steel structure. The required initial setting time is 5 min.


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DAP Tank Bond repair adhesives

DAP: Repair Adhesives

Today’s tough adhesive repair projects require tactical solutions and a product that blends both strength and precision.
DAP recently announced the introduction of Tank Bond, a complete line of adhesives reportedly ideal for professional and DIY repair applications.
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New-Prods

SIKA: Silane-Terminated Polymer Sealant

According to the company, the product is ideal for both indoor and outdoor applications and bonds well to various substrates, including metal, polycarbonate, FRP, and wood.

Sika Corp.’s Sikaflex-501 is a one-component silane-terminated polymer (STP) universal sealant.


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Ask Dr. Dave

What type of adhesives would you recommend for bonding glass to steel that will be exposed from -20-100˚F in an outdoor environment?

Dr. Dave explains why this type of application can often be tricky, particularly due to the large differences in thermal expansion coefficients between the glass, the steel, and the adhesive.
Dave Dunn, Ph.D.
Dave Dunn Ph.D.

You don’t indicate which substrate is on the outside, and this does make a difference in the possible choice of adhesive. Epoxy adhesives were traditionally used for this application, but they should be used with care as they may be too rigid.


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asi0420-AA-Purdue-Fig1
Advancing Adhesives

Making Adhesives Tougher with Weaker Bonds

Researchers have found that adding sacrificial weak bonds can improve the toughness of an adhesive system.

How do you make adhesives for electronics, vehicles, and construction tougher? By making them weaker.


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3M: VHB Tape LSE Series

Made of double-sided acrylic foam, the 3M VHB tape LSE series reportedly creates a long-lasting, high-strength bond and performs well across a wide temperature range, providing a durable alternative to ultrasonic welding and other adhesion methods.

The 3M VHB tape LSE series is reportedly a fast, easy, and reliable bonding solution for low-surface-energy (LSE) substrates like polypropylene (PP), thermoplastic olefins (TPO), and thermoplastic elastomers (TPE), as well as composite materials like glass-reinforced plastic (GRP) or fiber-reinforced plastic (FRP).


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