Tag Archives: adhesive application super glue surface cleanlinessm ultimate performancem uv cure

Getting Stuck in the Great Outdoors

We get a lot of questions from customers and other artisans, seeking advice on adhesives for use on glass projects made for use outdoors. (One of our top suppliers, Dymax Corp., gets questions about that, too — and they often send those calls our way.) In the course of addressing all those inquiries, we’ve gained a lot of hands-on experience with assembly and repair of garden art, light shades and fixtures, and other outdoor decorations. This is the season for outdoor projects, and the popularity of the topic inspired this post.

As with any glass assembly (or repair) project requiring adhesives, the most important consideration is the nature of the materials you want to stick together. The chief goal is to choose an adhesive that forms a strong, long-lasting bond between those materials. In an outdoor application, of course, it’s also important to find adhesives that are water-resistant.

Today we’ll look at two scenarios. Both involve bonding pieces of transparent glass to other materials, and both use adhesives that can be cured rapidly using long-wavelength (365 nanometer) UV light sources. (Moderately priced UV lights are available from CLK and other vendors; most grow-light style bulbs will work, as well.)

If you’re gluing transparent glass to transparent glass, Both Dymax Light Weld® 425 and Dymax Light Weld® 429 will provide very good results. By allowing you to shine the UV light through the glass to cure the glue “inside” the joint, these adhesives can form bonds stronger than the glass pieces themselves. Light Weld® 429 forms clear, see-through bonds, and is virtually invisible when applied carefully. Light Weld® 425 forms a somewhat stronger bond, and cures to an inconspicuous “water white” color.

If you’re attaching transparent glass to metal Dymax Light Weld® 429 is your best all-around choice for outdoor applications. It forms durable, water resistant bonds when cured using 365 nanometer UV light. One notable exception: If your glass-metal bonds need to withstand the rigors of dishwashing — as in the case of pitchers, mugs, or other glassware — not just the natural elements, you should use Dymax Light Weld® 425.

If you’re working with opaque glass or other non-transparent materials, you’ll probably want to find an alternative to light-cured adhesives. That’ll be the topic for a future blog post. Stay tuned.

Good Gluing!

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Welcome to our new CLK Associates Blog.

We are excited to share information, tips, ideas and everything meaningful to help you with bonding your glass, metal, crystal or wood project.

If you are an Artist looking for a way to attach glass, or a Craftsman in need of a UV Curing adhesive, or even a Homeowner looking for an adhesive to fix a valuable piece, we would love to help.

As this Blog grows, we’ll be adding Tutorials,  FAQ’s, Pictures of Artists Creations as well as your Ideas.  Thanks for coming by, stop back often and check out our site at www.clk-llc.com

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Assembly techniques for consideration when using adhesives.

Regardless of the adhesive chosen there are some basic steps in project design, part preparation, and adhesive application and cure to insure a long lived project.

Overview – Adhesives are another tool available to help make the assembly of materials easier.  However, to get the maximum benefit from their use you must play to their strengths.  For the following discussion the adhesive is assumed to be OK.
The adhesive is only as good as what it is stuck to.   Surface cleanliness is a must.

Make sure you have a simple test to insure the adhesive is working properly

Make sure the components are the same each time – substituting materials or a change in supplier needs to be re-evaluated – do not assume they are the same.

Hand fixturing induces lots of variability in the ultimate performance – simple fixturing and clamping will eliminate a major variation in performance.

Once the adhesive has been applied, the parts assembled and fixtured don’t handle or try to readjust things – most adhesives, regardless of how quick they set (with the exception of uv cure materials) continue to develop strength for several days – this includes super glues, 5 minute epoxies, etc.  Make sure you do not compromise performance if you need to handle parts soon after assembly.

Find out more at our site, www.clk-llc.com.

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