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September 01, 2001  |   Comments (0)   |   Post a comment

How to Repair Vinyl Seats on School Buses

A five-step process using a self-contained kit can repair seat damage with results that are durable and pleasing to the eye.

by Paul Hartley


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In the school bus business, seat repair is as common as yellow paint, costing the industry millions of dollars annually and keeping thousands of people busy in a nearly continuous exercise of aesthetic maintenance. Seat damage has a number of causes, mostly human. It often starts with the absent-minded poking, scraping or pinching of bored youngsters. Soon, small holes open up, often along seams or in corners. If not fixed quickly, these openings widen, eventually becoming gaping wounds that lead to the erosion and loss of underlying cushion material. For years, bus fleet managers used colored tape and glue to maintain some minimal level of seat cover integrity, but the effort was lost on their young pas-sengers who picked at the repairs with a fascinated intensity normally devoted to scabs. The result wasn't pretty. Master of seat repairs
Seat maintenance techniques have greatly improved during the past decade, however, thanks to L.W. Manchac, owner of Worldwide Vinyl in Kirbyville, Texas. Manchac got into the vinyl business in 1988, working as a salesman for a company that marketed repair kits to cafes, health clubs, auto dealers and bus fleets. He quickly saw the value in the product and, after a year, came to an agreement with his former boss and set out on his own, selling almost exclusively to bus shops. "I was doing nothing but cold calls back then, but I'd usually sell to about 50 percent of the people I visited," he says. "After a while, I was selling to about 75 percent of them." Such a closing ratio is almost unheard of in the sales world, but buyers liked what they saw: durable, well-camouflaged repairs that could be done without removing seat cushions from buses. Manchac's company has grown steadily over the years. Now, besides the kits, he offers complete covers and a mobile seat maintenance service. Kits come in 2 sizes
Worldwide's repair kits come in two sizes; the smaller one, selling for $485, is intended for fleets with fewer buses. The large kit sells for $685, and is said to be capable of covering 2,000 linear inches of tearing. Both kits include everything necessary for the jobs: heat gun, liquid vinyl, several different tex-ture pads, scissors, putty knives, touch-up paint, an instructional video and more — all housed inside a durable toolbox. Tim Brown, shop supervisor at Benjamin Bus in Northfield, Minn., bought a World-wide kit a year ago. He estimates the investment has already saved his 70-bus company about $1,600. Manchac says that number is conservative, at least according to the seat maintenance costs of fleets in the South, where heat and sunlight play a larger role in vinyl damage. "Down here," he says, "it's not uncommon for a fleet of 50 or 60 buses to spend $5,000 to $6,000 per year on seat repairs. The hotter the temperature, the more seat damage you'll find." For more information about Worldwide Vinyl, call (800) 642-5456. STEP 1 — Clean and fill damage.
The surface surrounding the cut should be free of dirt, oil and other contaminants. Use a vinyl cleaner to remove unwanted substances. Inspect the subsurface foam for missing material, and add as much as necessary — getting the fill from an unwanted cushion — to provide a firm, even foundation for the incoming patch. STEP 2 — Cut and insert patch.
Find a piece of appropriately colored scrap vinyl and cut off a piece in the shape of the hole, but make it slightly bigger. Poke the material into the hole, shiny side up, and tuck it under the existing cover. STEP 3 — Melt patch into cover.
Use the heat gun supplied with the Worldwide kit to melt the patch and surrounding vinyl together. Apply heat as evenly as possible over the entire patch area, moving the gun back and forth until slight whiffs of smoke appear. This smoke is a key indicator in the process because it's released at the point where the vinyl melts sufficiently to form a good bond. STEP 4 — Apply liquid vinyl.
Evenly spread a thin layer of liquid vinyl across the patch area, then apply heat until the substance becomes transparent. Firmly press the surface with the texture pad that matches the seat being repaired. Repeat the process until the patch and surrounding cover are level and smooth. Several thin layers of liquid vinyl form a much stronger bond than a single thick one. STEP 5 — Paint repaired area.
Apply a light coat of appropriately colored paint to the repair to blend it with the rest of the seat cover. Author Paul Hartley is a freelance writer and photographer in Northfield, Minn.


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