Tech Support

Support topics - SR3000

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What side of the glass is normally etched, front or back?

Etching on glass always has the best appearance when etching from the back side, unless the etching is very light or surface depth, then the front side would show best, this would be particularly true for Jade glass.

Tips:

This advice is meant for Awards and not drink ware.

What is the best way to sandcarve on wood handles?

I have no direct information on wood handles with out seeing the pieces. If your handles have a curve to them, you can warm the mask, this will enhance the materials ply-ability for wrapping around the curves. Keep in mind, that softer woods such as pine are easiest to engrave however, make sure of the following:

1. Avoid overheating the mask.

2. Make sure the mask is flat and tight on the surface of the piece.

3. Keep your blasting pressure low to moderate. Do not blast with great intensity; this can lead to a stubborn residue that is left behind.

4. After blasting, Peel away the mask quickly; do not allow the mask to sit on the piece for any longer than it has too. This will also help prevent any left over residue.

Tips:

If you are going to paint fill you will need to do the following steps immediately:

1. Leave the photomask on the substrate.

2. Blow off any excess dust from the engraved artwork/image area. This will help the paint to saturate the porous engraved area.

3. Lightly spray your engraved area with evenly top to bottom, left to right movements 2-3 times. Repeat this step if necessary; Remember, always paint in a well ventilated area.

4. Allow the paint to dry for 5-20 minutes. Time will vary and depend on the amount of paint usage.

5. Peel away the photomask and clean your substrate.

How do you wrap the laser mask on a round or curved surface?

Applying a flat mask to a rounded surface will naturally create some wrinkles.

What I typically do with curvature items is:

  • Separate the plastic backing from your LaserMask material you are going to use, this will eliminate the non-flexible component and give you a little more flexiblity to work with.
  • Apply the flexible LaserMask to your substrate.
  •  With your thumbs work out any wrinkles.

Tips:

If you can cut pie shape cuts on the sides (like a butterfly bandage)of  the LazerMask this will create flexibility  minimizing the wrinkles. You should have no problem with pulling and stretching the mask into place before you Laser your product.

Why is the photoresist film not washing out at all?

This can happen to anyone; here are some things to check:

  • You may have placed the clear carrier side facing up on your washout board, or on the drum of your automatic washout system. To correct this, simply remove the magnets and turn the photoresist over. Make sure the clear, shiny carrier is lying against the washout board or washout drum, and try it again.
  • You are washing your film in direct sunlight or outside. Because the film is light sensitive, you can’t wash it in direct sunlight. This will expose over the existing exposure you have completed.
  • You may have exposed the ink/toner side of your film print to the wrong side of the photoresist. If you have done this, you must use a new sheet of photoresist material. Be sure you are exposing the ink/toner side of your film print to the matte side of photoresist.

 

How long does it take the photoresist to washout?

This will depend on the sheet size, thickness of the material and the temperature and pressure of your water. All these answers combined are crucial to producing a perfect photomask everytime.

What is a photomask?

Photomask: a stencil made of photoresist film that has undergone a developing process. The stencil design is typically created from custom, computer-generated artwork, which may include lettering, photo images and/or a design pattern. The finished photomask is used to guide the sandcarving process, so that the custom artwork is etched or engraved into the surface being carved.

--- Photomask may also be called mask, stencil, premade pattern or template. ---

 

What is a Membrane?

Membrane: a clear, exceptionally thin layer present on some types of photoresist films. The membrane allows for easy release of the film carrier and, once the film has been developed, holds the photomask together. The membrane disintegrates during the sandcarving process.

Tips:

  • Membrane photoresist films are not recommended for Liquid Cream Etching.
  • Liquid Cream Etchers must order Non-Membrane photoresist film manufactured by Rayzist Photmask.
  • Non-Membrane photoresist films can be purchased in Custom Mask and SR2000 upon request.

What is Photoresist Film?

Photoresist Film: a translucent, durable, flexible, light responsive, water soluble, raw film that has not gone through a developing process.

---- Photoresist film is used to create a finished photomask. Photoresist film may also be called raw material or film. ---

How do I remove the photomask after sandcarving?

This will depend on two things: the material of your engraved surface and how that engraved surface can be treated.

1. For best results, submerge the piece in warm water and let it soak for several minutes. Because the photomask is water-soluble, it will absorb the water and cause the photomask to loosen from the engraved surface. Warm water also helps remove the dust and grit from the surface, which  helps prevent scratching.

If the item you have engraved cannot be submerged under water, as in the case of a picture frame or a labeled wine bottle, try the following:

  • Blow off any excess dust or grit from the item.
  • Spray the remaining photomask with warm water and allow the item to sit for several minutes.
  • Peel away the photomask from the surface.


2. You can also try lifting off the remaining photomask material with tacky tape. This way, you avoid rubbing the surface, which can scratch wood, acrylic, polished or coated metals.

 

 

Tips:

If you have added paint after you engraved your item; allow the paint to dry then remove the photomask.