Traffolyte Sheet Labels for MEP Projects: UAE Spec Guide

For the engineer with a labelling clause and 800 tags to get right: sheet thickness, sizes, colour codes, text rules, fixings and how to send a clean schedule.

A traffolyte sheet is a laminated plastic with a thin coloured face over a contrasting core, so when traffolyte engraving cuts through the face the letters appear in the core colour. That is the whole product, and it is why it has become the default for labelling valves, panels, pumps and ducts on construction sites across the UAE. This guide is written for the MEP contractor or site engineer who has an MEP labelling clause in the specification and a schedule of 800 tags to get right. It covers thickness, colour codes, text rules, fixing methods and how to send a label schedule that comes back without errors. We engrave traffolyte sheet in Ajman and deliver to sites in all seven emirates.

Where a traffolyte sheet beats a printed sticker

Printed labels are cheaper per piece and fine for the office. On an MEP installation they fail in predictable ways: the adhesive lets go above 60 degrees on a plant room pipe, the print fades on a rooftop within one summer, and cleaning chemicals lift the ink in kitchens and clinics. An engraved label has no ink to fade and no print to lift. The text is cut about 0.3 mm into the material and stays readable until the plastic itself is destroyed.

That does not make stickers useless on site. For cable trays, temporary identification and anything that will be painted over, a vinyl sticker is the right economy. Wet areas and chiller plants take a waterproof label for the same temporary jobs. The consultant's specification usually says which items need engraved tags, and it is almost always valves, equipment, distribution boards and anything a maintenance team will need to find in ten years.

Thickness, size and layers of a traffolyte sheet

• 1.6 mm two layer is the standard for tags up to about 100 by 50 mm. It is light enough to hang on a valve by cable tie and rigid enough not to curl.
• 3 mm two layer for panel labels and anything screwed to a wall or door, where a thinner sheet would show the screw heads lifting the edges.
• Three layer sheet has a coloured face, a white middle and a coloured back, so a single label can carry two engraving depths and two colours. It is specified for labels that need a coloured border or a symbol as well as text.

Typical sizes: valve tags 50 by 25 mm or 75 by 40 mm, usually with rounded corners and a 4 mm hole. Panel and equipment labels run from 100 by 50 to 200 by 100 mm. Door and room labels are commonly 150 by 50 mm, and often match the building's safety and wayfinding signs in style. A full traffolyte sheet is 1200 by 600 mm, so quotes are based on how many tags nest per sheet, and odd sizes that waste material cost more per tag than standard ones.

Colour codes that consultants expect

Face and text colour	Typical use on MEP projects
White face, black text	General equipment, valve tags, plumbing, HVAC
Black face, white text	Electrical panels, distribution boards, control gear
Red face, white text	Fire fighting systems, fire pump rooms, sprinkler valves
Yellow face, black text	Caution and hazard notices, gas, high temperature lines
Green face, white text	Safe condition, earthing points, emergency equipment
Blue face, white text	Mandatory instructions, potable and chilled water in some schemes

Confirm the scheme against the project specification before ordering, because developers in Dubai and Abu Dhabi sometimes issue their own colour tables that differ from the common ones above. The traffolyte sheet is laminated at the factory, so the face colour cannot be changed afterwards, and 600 fire tags in the wrong red is an expensive lesson.

Text, language and the label schedule

Most UAE specifications ask for Arabic and English on labels that the public or non technical staff will see, and English only on tags inside plant rooms. Minimum text height is usually 5 mm for tags read at arm's length and 10 mm for panel labels read from a metre away. Use a plain sans serif, upper case for equipment references, and never let the engraver scale the font to fit. If the reference does not fit, the tag is too small.

Send the schedule as a spreadsheet, one row per tag: tag reference, line 1, line 2, size, colour, hole or no hole, quantity. We run the traffolyte engraving straight from the spreadsheet, which removes the retyping step where most errors creep in. A traffolyte sheet order of 1,000 tags from a clean schedule takes 5 to 7 working days. The same order from a PDF drawing with the tags circled takes twice as long and needs a proof round.

Fixing methods for traffolyte labels

• Cable tie through a hole for valves and pipework. Specify stainless ties for outdoor and plant room use; nylon ties go brittle in UAE heat within two summers.
• Double sided foam tape for panel fronts and clean flat surfaces. Use a high temperature acrylic tape, not the general purpose kind.
• Screws through countersunk holes for doors, walls and anything in a public corridor. Two holes on tags over 100 mm long.
• Bead chain through a single hole for valve tags that must stay with the valve when insulation is replaced.

Where traffolyte labels need to sit on a curved pipe, a 1.6 mm traffolyte sheet bends enough to follow a 100 mm diameter with tape. Below that diameter, use a tag on a tie. Agree the fixing method in the MEP labelling schedule, because the hole position changes with it.

Traffolyte engraving versus the alternatives

Laser engraving is the standard now. It handles fine text, logos and symbols, and the speed suits long schedules. Rotary engraving cuts slightly deeper and is still asked for in some older specifications for outdoor tags; tell us if your clause calls for it. For stainless steel equipment plates on pumps and chillers, etched metal plates replace plastic. For the plant room door itself the client usually wants a finished sign rather than an engraved tag. Smaller items, like the name plates on an FM office door, use the same engraved sheet in a smarter colour.

What a traffolyte sheet order costs

Indicative prices from our Ajman workshop for MEP labelling, engraved and supplied with holes:

• Valve tags 50 by 25 mm, 1.6 mm, one or two lines: AED 6 to 9 each at 500.
• Panel labels 100 by 50 mm, 3 mm: AED 18 to 28 each at 200.
• Bilingual door labels 150 by 50 mm: AED 25 to 40 each at 100.
• Three layer traffolyte labels with a coloured border: add 30 to 40 percent.
• Stainless cable ties: AED 1.50 to 2.50 each.

Minimum order is one sheet's worth, roughly 50 small tags, which suits snagging lists and the inevitable additions after the first fix inspection. The same brief can carry the helmet stickers for the labour force. Printed safety vests go on the same delivery. So does the pre spaced vinyl lettering for the site hoarding.

Send us the specification clause and the schedule on WhatsApp and we will confirm colours, sizes and a delivery date before anything is cut. For the rest of the project's signs, from fire exit boards to the client's logo on the building, our signage range covers it. The acrylic letters for the lobby can follow when the fit out is ready. Traffolyte sheet tags are the least glamorous item on a tower, and the one the FM team will thank you for in 2036.

Related resources: See our desk accessories, marketing materials and stickers pages for specifications, quantity pricing and design options across the UAE.