ink, ink for self-inking rubber stamps, plastic, glass, metal, ink for special materials, supermarking ink, willmark ink by willard marking devices,

aeromark logo
3725 Valley Quail Lane
Klamath Falls, OR 97603
Tel (541) 205-5606
Tel (800) 447-9668
Hours: 9 to 5, Monday through Friday
fast service logo

INKS - Recomendations for Specific Materials & Application Notes

A-A-208D - (Also TT-I-1795A) We have 3 inks that meet this specification: #42M, #141 and #1250

Aircraft Parts - A lot of people use #1250, which meets A-A-208D. However, some types of clear coat will dissolve the impression, so if the spec is open, we recommend #6459, a one part epoxy with excellent adhesion to metals and solvent resistance to such things as kerosene and hydraulic fluid. If you have to meet A-A-56032D, then you’ll have to use #6050 two part epoxy ink.

Aluminum - #1250 is the most popular ink. It also meets A-A-208D. #141 also works well if you need a slower drying time. #6606 is the best, but dries quickly on the pad.
FOR SELF-INKERS: 141 works well or you can use Ultifast multi-surface ink in a pre-ink stamp.

Brass - #628 works well.

Cardboard - Ordinary stamp pad ink usually works, but if you get feathering, switch to #532 indelible ink.
SELF-INKERS: Standard self inkers and pre-ink stamps usually work well. For glossy printed surfaces, use Quick-Dry ink in self-inkers or Ultifast multi-surface ink in pre-inks.

Cellophane - #445 Super Marking ink works well as do the #620/#628 plastic marking inks.

Ceramics - for glazed ceramics, we recommend #6459, for unglazed, the #532 indelible.

Circuit Boards - #432 is generally considered the ink to use on circuit boards as it can take a wide variety of organic solvent baths, and is non-conductive. This ink is aggressive and it requires a metal or special pad, so if your impression is not going through a solvent bath, then the less aggressive #476 may be suitable. (This ink is only available in black.) If you put your boards through a muriatic acid/alkali wash, #6459 is recommended.

Cloth - #532 indelible is best. For nylon cloth, use #628

Concrete - #42M is recommended. It a dense ink with excellent is fade resistant and is weatherproof.
Fade Resistance - #42M is good for metal, lumber and concrete. If you need faster drying or you have to stamp on a-hard-to-mark surface, use #6606. #667 Opaque (fast) and #532 indelible (slower) inks also have good fade resistance.

Food Packaging - the following 4 inks all meet USDA guidelines for food packaging: #1250, #141, #620, #628.

Glass - With glass, you want a fast drying ink to avoid smudging. #445 Super marking, #6606 and #628 are recommended.

High Temperature Inks/Heat resistance - #6459 is good up to 650°F, but if it does not meet your needs, we can special order a specialized high-temperature ink.

Labels - For stamping non porous labels, #1250 is recommended. It works well on mylar and glossy papers. It is the best ink for foil. Pre-ink stamps with Ultifast multi surface ink can also be used.

For non-coated card stock stamps using ordinary stamp pad ink should work.

Leather - Use #532 indelible ink.

Metal Parts - The best ink for marking metal in terms of adhesion is #6459, but #6606 and #1250 also work well.

Mylar - #1250, #141 and #6606 all work well on mylar.
Nickel Plating - #6606 is recommended

Nylon - #628 is best.

Outdoor/Weathering - #42M is your first choice, but #141 is a good alternative.

Painted Surfaces - #620 ink will give a dense, waterproof fade resistant impression on painted parts. #42M and #667 opaque ink are also good. #1250 also works well.

Paper - Generally ordinary stamp pad ink is fine. If you you get feathering due to the porosity of the paper, then #532 Indelible or #445 Super Marking ink are a good alternatives. For high-gloss surfaces, use #445 Super Marking ink.

SELF-INKERS: Standard self inkers and pre-ink stamps usually work fine, but for glossy printed surfaces, use quick-dry ink in self-inkers or ultifast multi surface ink in pre-inks.

Photos - #1250 works best. #445 Super-marking ink is OK.

Plastics - A variety of inks will work on plastic, but some plastics such as polyethylene are hard to mark.
#620 (slow) and #628 (medium) work well on most plastics. #6606 (fast) will work on polyethylene. Untreated polyethylene is particularly hard to mark. Your best bet is #628.

Rubber - #1141 ink is the best for rubber parts. It doesn’t flake off when the surface is flexed, and it dries slowly enough to be usable in metal-frame SELF-INKERS.

Shrink Wrap - #620 works well. If you need temperature resistance, contact us. There are specialized inks we can get.
Silicone - Nothing really sticks to Silicone. #628 is best.
Stainless Steel - #6606 works well on stainless. So does #6459. #1250 will do at a pinch.
Tyvek - #620 is best. Dries quickly on the material, but stays moist on the pad for a long time. #6606 also works well.
Vinyl/PVC - #1141 rubber marking ink works best on this.
Waterproofness - most inks, with the exception of stamp pad ink, are water resistant. #667 Opaque, #532 Indelible and #445 Super Marking are particularly good. The ones to avoid are the plastic marking inks #620 and #628.
Wood - Stamping raw wood: indoor, use #532 Indelible, outdoor use #42M. For painted or varnished wood, use #1250 ink or #445 Super Marking ink.
Zeytel - is a hard-to-mark plastic. #628 works best.