This page contains a Flash digital edition of a book.
PAINT & POWDER COATING PRODUCTS & PROCESSES


Quality and Consistency can be Quick


An introduction to die cut masks by John D. Gill Masking is generally


an after thought and it’s rare we allocate time in the production cycle for masking parts.


So it should be no surprise when the


masking becomes the


bottleneck and is blamed for slow production and inconsistent product.


Most paint or powder shops have a bench in the corner that is the masking area. Typically it’s full of numerous adhesive tapes, scalpels, knives, cutting boards, hammers and punches. When a job needs masking it’s taken to the bench and masking tape is punched, cut, torn and then applied to the part and cut to shape with a knife. This whole masking process can take a number of hours depending on the complexity and quantity of parts to be masked and as this process is done by hand, each masked part may be slightly different.


There is a better way. Good masks can be produced effectively and can incorporate a range of features that will reduce your masking time and bring consistency to your process and final product.


Typical masking bench.


For anyone who wants to eliminate those hours spent hand punching adhesive tape or trimming around parts with knives, the solution is available now in the form of die cut masks from your masking supply company.


Die cut masks are pre-cut adhesive shapes that can


be removed from the roll and stuck on the part. They can be manufactured from the same types of tape that you are using now and can be supplied in a format and quantity to suit your production needs. Die cut masks will reduce your overall masking time and bring consistency to your painted products.


All the major masking and protection companies can supply die cut masks for you. In some cases there is no tooling charge and with todays technology they can be turned around quickly. Most masking supply companies carry a range of standard shapes such as discs, rectangles and


42 SURFACE WORLD February 2014


squares cut from their most common masking tapes. But they are also capable of producing custom shapes and sizes to suit your needs.


Die cut masks can have a number of features that will increase the efficiency of both mask application and removal. Features such as tabs on the masks to help removal can save a tremendous amount of time; no more pushing a knife under the mask and scratching the painted surface or damaging the part as you remove the mask. Alignment marks can be put onto the masks to ensure the masked area is correctly spaced around a feature. Die cut masks can be designed to incorporate Poka-yoke to ensure the correct areas or elements are masked. For parts where a lot of areas need to be masked, die cut masks can be supplied in kit form, so the masker can be sure the component is masked correctly once all of the masks have been used. Those die cut kits can be laid out to be in the same orientation as the part and be identified with part numbers or work instruction details.


With the help of die cut masks there is no reason why you can’t reduce your process cycle time whilst increasing the quality and consistency of your final product.


John D. Gill is an Engineer with experience in masking and product protection throughout the UK, Europe and USA. He can be reached via Twitter @masking101


Die Cut Masks bring you quality and consistency follow us on Twitter @surfaceworldmag


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69  |  Page 70  |  Page 71  |  Page 72  |  Page 73  |  Page 74  |  Page 75  |  Page 76