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Its international glue awareness day nah. Not really what it really is interna microjig microjig maker of the grr ripper work safer work. Smarter.
Yeah. I use a little of glue in my projects. A lot of new woodworkers are surprised to learn that wood glue is often the strongest method for joining two pieces of wood together it can hold better than screws or nails and in most cases.
The glue is actually stronger than the wood. Its holding together. Ive glued.
These boards together with wood glue and lets see where they break here you can see the area that was glued up still remains it broke along the grain of the wood. There are a lot of different types of adhesives all with their own benefits for specialty situations i might use contact cement or superglue or hot glue spray adhesive rubber cement silicone or construction adhesive but ill save those for a future video in this video. Im only going to discuss the adhesives.
I most commonly use and always have on hand in my shop woodworking for mere mortals is not sponsored by any of the brands. I mention here these are adhesives that work well for me. And that im confident to recommend to you yellow wood glue is the adhesive.
I use and trust on almost every project. I use tightbond ii it dries fairly quickly. But its slow enough to give me time to position and adjust pieces for assembly.
And its water resistant to make it easier to use i pour it into a smaller bottle this one is called a glu bot. The main benefit here is that it can push the glue out at any angle. So you dont have to hold it upside down wood glue works best on the face grain or the edge grain of a board and will create an incredibly tight bond glue on the end grain is a little different ill talk more about that in a minuet.
I like to make sure that every part of the joined surface is covered in glue.
Theres a lot of ways you can spread it around evenly you can use a disposable brush or you could use one of these silicone basting brushes. They work out really well and you can usually find them at the dollar store in with the kitchen supplies. But really the best part about using these silicone brushes is that its weirdly satisfying to remove that dried up glue.
I dont know why that is but its kind of like that feeling i get when i remove a splinter and i just need to examine it for larger surfaces an old credit card or playing card works well to spread the glue or even just a scrap of cardboard. But really i usually find the most convenient way to spread glue. Especially on the edges of boards is just to use my finger wood glue washes off easily in water or just peels off once its dry and that can be kind of satisfying too.
Its important to clamp your boards together while theyre drying to insure a strong bond. The goal with clamping is to apply even pressure all along the boards the more clamps you use the better. And you dont need to make them super tight a good way to judge is just tighten them until you see glue squeezing out i have no special technique for removing the excess glue.
I try to wipe off as much as i can while its still wet using my finger or a dry cloth for wood glue to achieve. Its maximum strength it needs about 24 hours of dry time. But thats not how long you need to wait before moving on with your project.
I find that i can remove the clamps in about an hour as long. Im not subjecting the joint to any stress. And if if im feeling extra frisky.
A half hour is usually fine. I cant usually wipe off all the excess glue. So i just sand it off once its dry.
The important thing is to make sure that you get it off any areas that will be visible double check the wood by wiping. Some mineral spirits on it it will highlight any areas that you missed so you can sand them off. Its also worth pointing out that clamping is not always necessary on certain small or decorative projects.
Its fine to glue small pieces in place by just setting them in place and letting them dry.
This is especially useful for art projects such as collages that wont receive any stress. And theres really no practical way to clamp them anyway a technique. I like using a lot especially on case work cabinets and such is to glue.
The boards. Together and then tack them into place with a brad or a pin nailer. The nails alone arent really strong enough to hold the work pieces together.
But they act as clamps so once i glue and tack. The boards together i can immediately move on with my assembly rather than having to wait an hour of course. There is one major drawback.
The nails will leave visible holes. This isnt a problem if the joint is a part of the project that wont show or if the project is going to be painted. However if its on a fine piece that you want to stain or finish.
It will be nearly impossible to fill those holes and match. The color of the wood perfectly gluing on the end grain of a board is not as strong. But it can be acceptable imagine the grain of wood like these straws the end grain is hollow.
Thats the direction that the tree grows and how water and nutrients travel up the trunk. So when you apply glue to that end grain. A lot it gets soaked up not leaving much for bonding.
This is mostly a problem on projects that are going to be subjected to a lot of stress or movement for small decorative projects. Its usually fine say for boxes or mitered corners on picture frames. There are a couple of techniques you can use to improve the strength of end grain glue ups.
The first is to make up a sizing for the end grain sort of a preconditioner make up a mixture of half glue and half water and brush it on the thinned glue fills in those pores.
Easily let. It dry for a. While.
And then glue. Together your pieces like normal with full strength glue. Another method.
The one. I usually use is just to force full strength glue into the pores of the end grain. Just smoosh.
It in youll see and feel it being absorbed. Then just let it dry a few minuets and glue it up as normal. If this is going to be for a chair or table.
Something thats going to be subjected to force. I would reinforce this joint with some sort of a mechanical fastener like a screw. The strongest method would be to add a couple of pocket screws.
Not surprisingly wood glue works fantastic on well wood. But not so well on anything else. And sometimes you need to join wood to other materials.
Say metal or plastic or glass in most of these cases. I like to use epoxy. I find the five minute epoxy works great for almost all my needs they always come in two parts.
That you need to mix together mix it together really well and dab it on the parts.
You want to join theres no need to clamp. So why not just use epoxy for everything instead of even bothering with wood glue well for one thing. Its more expensive.
But its also messier and a little bit more difficult to use having to mix it up each time and you cant really sand it down very easily and if youre joining two pieces of wood together. It might not be as strong as wood glue and since its not water based clean up is kind of a pain. If there were a single glue.
I would consider using for everything it might just be be weldbond. Ive only recently started using it and i find myself using it more and more its got a lot going for it it seems to bond just about anything just like it says. Ive used it for gluing together painted boards.
Something that wood doesnt do well ive used it for glass and ceramics terracotta metal plastic another great feature of weldbond is that it dries clear and it just doesnt seem to be as messy as wood glue. If you have any tips or tricks on glueing. Id love to hear them or if you have any questions.
Please leave them down in the comments and ill answer some of those early next week on more minutes. And let me know what type of adhesives you like and why there are so many different kinds and we tend to evaluate them based on their strength alone. Which isnt always the most important factor in choosing a glue.
I dont make that many projects that require four ton holding power dry time clean up environmental impact volatility ease of use durability to the elements convenience these are all factors to consider when buying glue hey memos have you checked out home and garden for mere mortals lately we are assembling a great new team of contributors. Including kristopher who will be sharing his gardening tips and advice with us every month check out his first hgmm video posted just last week and give him a warm welcome and check out and subscribe to his personal channel. Too we have lots more great home lifestyle videos coming soon.
And dont forget to check out more minutes. For deleted. Scenes answers to your questions and lots more about glue.
Thanks for watching everybody ill see you next week. .
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