So onto the specification
level, what's the
Apollo and in filling in the blanks, other brands of
gaff tape specified at in a cross reference to below type comparison question?
Model #, Material, Adhesive type,
Thickness, Tensile Strength, oz/sq. inch adhesion to Stainless Steel, Operating temperature.
Bringing up an old discussion on
Gaff Tape from last year- why it becomes gummy. The details on various types and brands might be of use here under study and comparison.
First an important note about
Gaffers Tape -
To quote from Surtape website on P-665 tape: “Tape should be stored in its original packaging in a cool, dry area away from direct sunlight and should be used within 12 months of date of shipment. (This includes how long it’s been on the shelf at your supplier.) Surfaces to which tape is applied should be clean, dry and free of grease, oil and other contaminants.”
3M website notes storage from 60°F to 80°F and 40 to 60% RH in original carton. Also use is best when one year after manufacture. Scapa notes: free from oil & contaminants such as powder, dust or
release agents. “Adhesive performance should be carefully checked when used on substrates containing plasticizers.” “Shelf life is one year from date of shipment when stored in a cool dry place below 76°F. Rolls should be stored on end.”
Tape Notes:
The Permacel website does not list the above part numbers on their website but are famous for reselling it. The Pro Tapes (Pro
Gaff) lists Permacel as made by Shurtape. Shufford Mills(Spec Tape) also resales Shurtape with their name company name on it. Domestically, there is probably only one
Gaffers tape supplier. There is different brands stamped on the tape and different grades of it otherwise as the real differences. Shurtape for instance even has Permacel tape in the photo for their P-628 tape. Once in a while you will see a P-665 tape without even a brand name inside it’s
roll, most often it’s from Shurtape and is the same as Permacel and Pro
Gaff.
United Tape and Intertape are the same brand of tape as is Nashua and Polyken the same brand. Normally you should see Polyken but I have also seen Nashua
gaffers tape. I don’t remember who makes
Rosco brand
Gaffers tape but think I remember it being one of the above as another example. Many companies these days resale other tape brands of tape just with their name interchangeable on the inner
roll thus my at times seeing a pre-printed inner
roll..
My results upon study of information given. First that
thickness changes and or is rounded off dependant upon who advertises it or what part of even their website you look at. This would tend to confirm that even if Pro
Gaff is listed in a different place than P-665 on the Pro Tape website, it is the same tape in having no other details about it in difference.
Overall synopsis:
There is two main types of
gaffers tape - Synthetic and rubber based adhesion. Beyond this my hypothisis would be that rubber based tapes stick better to dirty surfaces better. All get gummy with time, heat or chemicals applied to them, rubber instead of synthetic might become more gummy with chemicals. The premium grades or those better defined by adhesive pound per square inch listed details tend to stick better than others but you also often get what you pay for. In addition to this, there seems to be at times a better adhesion difference between what would be clean steel as in stainless non-oil coated steel adhesion differences to some tapes. This to a difference to general adhesive properties to other materials.
Normal Grade Synthetic Rubber
Gaff Tapes:
Pro
Gaff: Vinyl Coated Cotton Cloth; Synthetic Rubber Resin Adhesive; 12mil (11.5mil)
thickness; 48#/Inch tensile Strength; 60oz/square inch adhesion to stainless steel; Operating temperature of 45° to 200°F.
Permacel P-665: Vinyl Coated Cotton Cloth; Synthetic Rubber Resin Adhesive; 12mil (11.5mil)
thickness; 48#/Inch tensile Strength; 60oz/square inch adhesion to stainless steel; Operating temperature of 45° to 200°F.
Shurtape P-665: Vinyl Coated Cotton Cloth; Synthetic Rubber Resin Adhesive; 12mil (11.5mil)
thickness; 48#/Inch tensile Strength; 60oz/square inch adhesion to stainless steel; Operating temperature of 45° to 200°F.
Spectape ST-665: Vinyl Coated Cotton Cloth; Synthetic Rubber Resin Adhesive; 12mil (11.5mil)
thickness; 48#/Inch tensile Strength; 60oz/square inch adhesion to stainless steel; Operating temperature of 45° to 200°F.
Industrial/Professional Grade Synthetic Rubber
Gaff Tapes:
Professional Grade Permicel P-672: Vinyl Coated Cotton Cloth; Synthetic Rubber Resin Adhesive; 12mil (11.5mil)
thickness; 48#/Inch tensile Strength; 80oz/square inch adhesion to stainless steel; Operating temperature not listed °F.
Industrial Grade Shurtape P-672: Vinyl Coated Cotton Cloth; Synthetic Rubber Resin Adhesive; 11.5mil
thickness; 48#/Inch tensile Strength; 80oz/square inch adhesion to stainless steel; Operating temperature not listed °F.
Spec Grade Shurtape P-691NSY: Vinyl Coated Cotton Cloth; (Portsmouth Naval Shipyard Spec) Synthetic Rubber Adhesive; 14mil
thickness; 69#/Inch tensile Strength; 60oz/Square Inch adhesion to stainless steel; Operating temperature not listed °F. (This would seem to be the premium premium grade of
gaffers tape.)
Professional Grade Rubber Adhesive
Gaff Tapes:
Industrial Grade Shurtape PC-628: Vinyl Coated Cotton Cloth; Rubber Resin Adhesive; 12mil
thickness; 46#/Inch Tensile Strength; 50oz/Inch adhesion to Stainless Steel; Operating Temperature 50° to 200°F
Spectape ST-628: Industrial Grade Shurtape PC-628: Vinyl Coated Cotton Cloth; Rubber Resin Adhesive; 12mil
thickness; 46#/Inch Tensile Strength; 50oz/Inch adhesion to Stainless Steel; Operating Temperature 50° to 200°F
3M #6910; Vinyl Coated Cotton Cloth; Rubber Resin Adhesive; 12mil
thickness; 45#/Inch Tensile Strength; 45oz/Inch adhesion to Stainless Steel; Operating Temperature to 200°F for one hour.
Polyken #510: Vinyl Coated Cotton Cloth; Rubber Resin Adhesive; 11.5mil
thickness; 45#/Inch Tensile Strength; 50oz/Inch adhesion to Stainless Steel; Operating Temperature to 200°F
Polyken #512 High Adhesion: Vinyl Coated Cotton Cloth; Rubber Resin Adhesive; 12mil
thickness; 40#/Inch Tensile Strength; 100oz/Inch adhesion to Stainless Steel; Operating Temperature to 200°FPolyken #525 Premium: Vinyl Coated Cotton Cloth; Rubber Resin Adhesive; 11mil
thickness; 55#/Inch Tensile Strength; 35oz/Inch adhesion to Stainless Steel; Operating Temperature to 200°F
Scapa #425: Vinyl Coated Cotton Cloth; Rubber Resin Adhesive; 10mil
thickness; 35#/Inch Tensile Strength; 60oz/Inch adhesion to Stainless Steel; Operating Temperature 65°F minimum.