Oleh Jim Hingst
Beberapa
wood has imperfections, such as cracks or knots, which should be filled before
sanding, staining and varnishing. The easiest way to fill these holes is to run
down to your local hardware store and buy a can of wood putty. It is the
simplest solution, but probably not the best. The reason is that wood putty can
fall out over time. A much better solution is to fill the cracks in the wood
with epoxy colored with pigment. It takes a little more effort, but it is much
more effective. Here’s why. Epoxy penetrates the pores of the wood and holds on
tighter. The epoxy that you use as an alternative to the wood putty is the same
epoxy that you use as epoxy glue.
wood has imperfections, such as cracks or knots, which should be filled before
sanding, staining and varnishing. The easiest way to fill these holes is to run
down to your local hardware store and buy a can of wood putty. It is the
simplest solution, but probably not the best. The reason is that wood putty can
fall out over time. A much better solution is to fill the cracks in the wood
with epoxy colored with pigment. It takes a little more effort, but it is much
more effective. Here’s why. Epoxy penetrates the pores of the wood and holds on
tighter. The epoxy that you use as an alternative to the wood putty is the same
epoxy that you use as epoxy glue.
process of filling cracks in wood with epoxy is not difficult. You do need to
be prepared to work fast, however, because epoxy has a limited working time.
The first step in working with epoxy is to assemble everything that you need in
one place before you get started.
next step may or may not be required. Check the wood for your project piece. If
the crack goes all the way through the wood, you will need to do some taping.
3M Blue Painters Tape will work. Apa
works even better is clear plastic packaging tape.
Sana
are a couple of ways to tape off a crack. One way is to tape the bottom of the
wood and fill the crack from the top. That works for many woodworkers. Here’s
the problem though. As epoxy cures, the chemical reaction creates carbon
monoxide gas. That means that bubbles
form in the epoxy and float to the surface. To get rid of the bubbles, you can
carefully heat the surface of the epoxy with a propane torch and that will
burst your bubble. Another way is to tape the side of the board that will be
exposed and fill the crack in the wood from the bottom. That way any bubbles
float to the side of the board which will not be exposed. Both ways work. The
choice is yours.
are a couple of ways to tape off a crack. One way is to tape the bottom of the
wood and fill the crack from the top. That works for many woodworkers. Here’s
the problem though. As epoxy cures, the chemical reaction creates carbon
monoxide gas. That means that bubbles
form in the epoxy and float to the surface. To get rid of the bubbles, you can
carefully heat the surface of the epoxy with a propane torch and that will
burst your bubble. Another way is to tape the side of the board that will be
exposed and fill the crack in the wood from the bottom. That way any bubbles
float to the side of the board which will not be exposed. Both ways work. The
choice is yours.
next step is to mix the epoxy. In the sign industry one of the most widely used
epoxy resins is the West System Epoxy. Because of its versatility and
durability, old school sign makers frequently select this product for projects.
Barat
System 105 epoxy resin is the key component in a variety of epoxy formulations
including coatings, lamination and adhesives.
System 105 epoxy resin is the key component in a variety of epoxy formulations
including coatings, lamination and adhesives.
West System is comprised of three components: the 105 epoxy resin, a hardener
and filler. Depending on which hardener and filler you select, you can use it
to as an adhesive, or as a clear coat or for laminating fiberglass or to repair
damage to a surface.
Jika kamu use West System epoxy and
use West System 300 mini pumps, metering and mixing the correct ratio is easy. All you need
to remember is to combine one full pump of resin with one full pump of
pengeras.
use West System 300 mini pumps, metering and mixing the correct ratio is easy. All you need
to remember is to combine one full pump of resin with one full pump of
pengeras.
Ukur
the resin and hardener in exact proportions is critical. Whatever you do, don’t
be creative. Some people make the mistake of adding in a little extra hardener,
thinking that they will aid the curing. It doesn’t work that way. In fact,
adding more hardener creates problems with the epoxy curing completely.
the resin and hardener in exact proportions is critical. Whatever you do, don’t
be creative. Some people make the mistake of adding in a little extra hardener,
thinking that they will aid the curing. It doesn’t work that way. In fact,
adding more hardener creates problems with the epoxy curing completely.
Juga
keep in mind that the proportions for mixing epoxy vary from product to
product. Some brands require a 1:1 ratio. Other brands mix at a ratio of 5
parts of resin to 1 part of hardener. The lesson here is to always read the
instructions and follow them to the letter.
keep in mind that the proportions for mixing epoxy vary from product to
product. Some brands require a 1:1 ratio. Other brands mix at a ratio of 5
parts of resin to 1 part of hardener. The lesson here is to always read the
instructions and follow them to the letter.
Epoxy
Resin Hardeners
Barat
System offers many different types of hardeners. The major difference from one
harder to another is the rate of speed at which the mixture cures. The 205
hardener, which is very popular, sets up fast. For filling cracks, this
hardener should work just fine. In warm weather environments, you may need a
slower setting product, such as the 206 hardener or the 209 hardener. The 207
hardener is a specialty super clear hardener, which you can use in a variety of
applications, such as adhesives, surface repairs, fiberglass lamination as well
as a finish coating.
System offers many different types of hardeners. The major difference from one
harder to another is the rate of speed at which the mixture cures. The 205
hardener, which is very popular, sets up fast. For filling cracks, this
hardener should work just fine. In warm weather environments, you may need a
slower setting product, such as the 206 hardener or the 209 hardener. The 207
hardener is a specialty super clear hardener, which you can use in a variety of
applications, such as adhesives, surface repairs, fiberglass lamination as well
as a finish coating.
Percampuran
the Epoxy Resin and Hardener
Setelah
menuangkan kedua komponen ke dalam wadah yang bersih, Anda harus mencampurnya secara menyeluruh
resin and hardener together. For mixing epoxy, I use a plastic cup, such as a
Solo cup.
menuangkan kedua komponen ke dalam wadah yang bersih, Anda harus mencampurnya secara menyeluruh
resin and hardener together. For mixing epoxy, I use a plastic cup, such as a
Solo cup.
Kapan saja
you mix any components, make sure that you scrape the sides and the corner at
the bottom of the container. For mixing I use the West System mixing plastic
mixing sticks. These sticks are squared off which allows you to get into the
corners of the cup.
you mix any components, make sure that you scrape the sides and the corner at
the bottom of the container. For mixing I use the West System mixing plastic
mixing sticks. These sticks are squared off which allows you to get into the
corners of the cup.
Setelah
you have mixed the epoxy, it is time to add the pigment powder. Many
woodworkers will use either a black charcoal pigment or a dark brown pigment.
You don’t need to add much. For you older readers, it’s like Brylcreem – a
little dab will do you. As an alternative to pigment powder, you can also use a
colorant such as Mixol.
you have mixed the epoxy, it is time to add the pigment powder. Many
woodworkers will use either a black charcoal pigment or a dark brown pigment.
You don’t need to add much. For you older readers, it’s like Brylcreem – a
little dab will do you. As an alternative to pigment powder, you can also use a
colorant such as Mixol.
Kerja
Waktu
Setelah
you mix the ingredients, the mixture will transform from a liquid to a gel and
finally to a solid. You need to work fast because once the resin and hardener
are combined the pot life is limited. In some cases you may only have as little
as 15 to 30 minutes to work.
you mix the ingredients, the mixture will transform from a liquid to a gel and
finally to a solid. You need to work fast because once the resin and hardener
are combined the pot life is limited. In some cases you may only have as little
as 15 to 30 minutes to work.
open time that you have when working with the epoxy will depend several
factors, including the size of the batch that you are mixing and the ambient
temperature of your shop. When filling cracks, you typically will only need to
mix a small batch.
Epoxy
also cures faster as the ambient temperature increases. The optimal temperature
is 70°F. For hot weather applications, use a slower hardener. Do not use epoxy
when the temperatures of your shop or the materials are below 50°F. Low
temperatures can compromise adhesion.
also cures faster as the ambient temperature increases. The optimal temperature
is 70°F. For hot weather applications, use a slower hardener. Do not use epoxy
when the temperatures of your shop or the materials are below 50°F. Low
temperatures can compromise adhesion.
Ketika
to Use Epoxy Filler
If
you are filling an imperfection on a vertical surface, you will need to mix in
a filler to thicken it up. The 405 filler is great for general purpose adhesive
applications. Gradually add thickener to the resin/hardener mixture until you
attain the desired consistency. For adhesive applications the epoxy should have
the consistency of creamy peanut butter.
you are filling an imperfection on a vertical surface, you will need to mix in
a filler to thicken it up. The 405 filler is great for general purpose adhesive
applications. Gradually add thickener to the resin/hardener mixture until you
attain the desired consistency. For adhesive applications the epoxy should have
the consistency of creamy peanut butter.
high density fillers, such as West System’s 405 or 406, change the structural
karakteristik epoxy, membuatnya lebih kuat atau lebih tebal.
pengisi kepadatan menjadi sangat keras setelah epoksi mengeras, yang membuat pengamplasan
sulit.
By
comparison low density fillers, such as West System’s 407, are designed for
filling holes or to add mass to a surface which can be easily shaped in a manner that Bondo is used for cosmetic
purposes. Lighter weight filler are much easier to sand.
comparison low density fillers, such as West System’s 407, are designed for
filling holes or to add mass to a surface which can be easily shaped in a manner that Bondo is used for cosmetic
purposes. Lighter weight filler are much easier to sand.
Penuangan
Epoxy into the Crack
Ketika
everything is thoroughly mixed, pour the mixture into the crack. A spoon works
for this procedure. As I wrote earlier, bubbles will rise to the top. When
these bubbles form, heat the epoxy with your torch to burst the bubbles. After
the epoxy has dried completely, it is time for sanding.
everything is thoroughly mixed, pour the mixture into the crack. A spoon works
for this procedure. As I wrote earlier, bubbles will rise to the top. When
these bubbles form, heat the epoxy with your torch to burst the bubbles. After
the epoxy has dried completely, it is time for sanding.
Kesimpulan
Untuk
filling in cracks in wood, especially larger cracks, epoxy resin is a much
better choice than the wood fillers in a can. Epoxy is waterproof, solvent
resistant and chemical resistant. With respect to service temperature range,
epoxy resins withstand extreme heat and cold, which make them great for either
indoor or outdoor applications.
filling in cracks in wood, especially larger cracks, epoxy resin is a much
better choice than the wood fillers in a can. Epoxy is waterproof, solvent
resistant and chemical resistant. With respect to service temperature range,
epoxy resins withstand extreme heat and cold, which make them great for either
indoor or outdoor applications.
ARTIKEL TERKAIT
Alat Ukir Kayu Apa yang Anda Butuhkan?
Fishtail Chisels and Fishtail Gouges for Letter Carving and Relief Carving
Fishtail Chisels and Fishtail Gouges for Letter Carving and Relief Carving
Tentang Jim Hingst: Menandatangani otoritas bisnis pada bungkus kendaraan, grafis vinil, sablon, pemasaran, penjualan, daun emas, ukiran kayu, dan lukisan.
Setelah Setelah empat belas tahun menjadi Manajer Pengembangan Bisnis di RTape, Jim Hingst pensiun. Ia terlibat dalam banyak aspek bisnis perusahaan, termasuk pemasaran, penjualan, pengembangan produk, dan layanan teknis.
Hingst memulai kariernya 42 tahun lalu di bidang seni grafis dengan membuat dan memproduksi materi iklan dan promosi untuk produsen peralatan uji besar. Bekerja untuk percetakan offset, percetakan layar format besar, produsen film vinil, dan perusahaan pita aplikasi, pengalamannya meliputi estimasi, perencanaan produksi, pembelian dan produksi seni, serta penjualan dan pemasaran. Dalam kapasitasnya sebagai tenaga penjual, Hingst diakui dengan berbagai penghargaan atas prestasi penjualan.
Dengan mengandalkan pengalamannya dalam produksi dan sebagai subkontraktor pemasangan grafis, Hingst memberikan saran praktis kepada industri, dengan menerbitkan lebih dari 150 artikel untuk berbagai publikasi, seperti Signs Canada, SignCraft, Signs of the Times, Screen Printing, Sign and Digital Graphics, dan Sign Builder Illustrated. Ia juga mengunggah lebih dari 500 cerita di blognya (hingstssignpost.blogspot.com). Pada tahun 2007, buku Hingst, Vinyl Sign Techniques, diterbitkan. Teknik Tanda Vinyl tersedia di distributor perlengkapan tanda dan di Amazon.
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