When you spec thermoplastic, the same fork keeps showing up: extruded for the linear runs, or preformed templates for the symbols and short transverse markings? Both formats use the same base resin (AASHTO M249), but the application method, the per-foot cost, the install speed, and the jobs they fit are different. Below is the decision framework we work from on a normal commercial install.
Direct answer: Choose extruded thermoplastic for long linear runs (lane lines, parking-stall lines, lot perimeter, fog lines) where ribbon application via a hand-liner or ride-on melter is faster and cheaper per linear foot. Choose preformed thermoplastic for symbols, arrows, stop bars, and crosswalks where the pre-cut template applies in 90 seconds with a propane infrared heater and produces a sharper edge.
What Is Extruded Thermoplastic?
Extruded thermoplastic is hot-applied AASHTO M249 resin pushed through a hand-liner or ride-on melter shoe in a continuous ribbon. The shoe drags across the substrate, depositing a 4-, 6-, or 8-inch wide line at 90 to 125 mil thickness. The crew drops AASHTO M247 Type I glass beads onto the still-warm resin behind the shoe, and the line cools to ambient in 5 to 15 minutes.
Extruded application is the format used for most highway lane work. The equipment is mobile, the per-foot rate is the lowest of any thermoplastic format, and the line edges hold up well to traffic wear because the ribbon thickness is uniform across the line width.
What Is Preformed Thermoplastic?
Preformed thermoplastic is the same AASHTO M249 resin manufactured into pre-cut template sheets. The template comes in standard SKUs: ISA symbols, arrow heads, "STOP" legends, "ONLY" legends, "BUS" legends, school-zone bars, continental crosswalk bars, and similar shapes. The crew positions the template on the substrate, applies a propane infrared heater for 60 to 120 seconds depending on the SKU, and rolls the softened template into the substrate.
Preformed mil thickness is typically 125 to 150 (manufacturers' sheet thickness), so preformed often comes in thicker than sprayed extruded line work. Glass beads are factory-bonded into the top surface of most preformed product, which means no separate bead drop is required at install.
When Should You Choose Extruded Thermoplastic?
Extruded is the right choice when:
- The linear footage is over 1,000 LF on a single mobilization
- The project is a parking-lot stripe with hundreds of stall lines
- Crew speed across long runs matters more than per-feature install time
- The project budget needs the lowest per-foot thermoplastic price
- Lane lines, fog lines, edge lines, parking lines, or buffer lines dominate the scope
Extruded thermoplastic on a hand-liner runs roughly 60 to 100 LF per minute under typical conditions. A ride-on melter doubles that.
When Should You Choose Preformed Thermoplastic?
Preformed is the right choice when:
- The project is symbol-heavy: arrows, ISA, "STOP," "ONLY," "BUS," numbers
- Short transverse markings dominate the scope: stop bars, crosswalk bars, school-zone bars
- The install needs to fit in a tight time window where extrusion equipment cannot mobilize
- The project requires pristine line edges (school-district visual standards, hospital campus signage requirements)
- The crew is doing intersection-only work without surrounding lane runs
Preformed application is roughly 90 seconds per template once the substrate is prepped, which makes it faster per feature than extruded for symbols and short bars.
What About Sprayed Thermoplastic?
Sprayed thermoplastic is a third format worth knowing about even though the question usually gets framed as extruded vs preformed. Sprayed application uses an airless gun to lay hot resin onto the substrate at 60 to 90 mil. The line edges come out softer than extruded and the film is thinner, but it works for high-volume long runs where speed beats edge sharpness. For the full three-way comparison, our thermoplastic formats: hot-applied vs preformed vs sprayable guide covers all three.
For brand-specific preformed product comparisons (who ships reliable templates for ISA, arrows, and STOP legends), our best preformed thermoplastic arrows and symbols buyer's guide ranks the manufacturers.
How Do the Costs Compare?
Industry Baseline Range
| Format | Installed price |
|---|---|
| Sprayed thermoplastic, 90 mil | $1.20 to $1.80 per LF |
| Extruded thermoplastic, 125 mil | $1.80 to $3.50 per LF |
| Preformed thermoplastic stop bar (24-inch wide) | $300 to $750 per bar |
| Preformed thermoplastic ISA symbol | $250 to $450 per symbol |
| Preformed thermoplastic continental crosswalk | $1,200 to $2,800 per crossing |
Current Market Reality
Per-foot pricing for both formats trended above 2024 baselines through 2026 as petrochemical resin cost and ODOT prevailing wage rates climbed. Preformed templates carry a stronger premium for tier-1 manufacturers because lower-volume SKUs (less common arrow shapes, custom legends) ship slower and at higher unit cost than the high-volume SKUs (ISA, arrows, STOP).
What Lifespan Difference Should You Expect?
Extruded 125-mil thermoplastic on a 5,000-AADT lane line typically holds 6 to 10 years before retroreflectivity drops below the MUTCD floor under 23 CFR 655.603. Preformed thermoplastic on a stop bar or symbol at the same intersection holds 5 to 8 years.
Preformed gets slightly less life than extruded at equivalent thickness because the substrate bond at preformed edges depends on the IR-heater and roller technique, while extruded resin fuses uniformly across the entire ribbon footprint. Both materials outlast paint by a wide margin.
How Does the Decision Play Out on a Real Job?
For a typical 22-acre Oregon retail center restripe, the right choice is almost always a combined job:
- Extruded thermoplastic for all lane and stall lines (long linear footage)
- Preformed thermoplastic for ISA symbols (precise template, sharp edges, ADA visibility)
- Preformed thermoplastic for stop bars and crosswalks (short transverse markings)
That mixed approach is what we run on most Tier 1 Oregon retail and tech-campus jobs. For a worked install example, our Eugene thermoplastic install case study walks through one.
For an earlier service-side comparison covering the same trade-offs in a different framing, see Cojo's existing pre-formed thermoplastic vs extruded guide.
Recent Cojo Job Mix
In March and April 2026, Cojo crews installed roughly 28,000 LF of extruded thermoplastic and 142 preformed thermoplastic features across 11 Oregon properties. The 11 jobs each used both formats in the same install day, which is the cost-efficient approach for combined-scope projects.
Frequently Asked Questions
Can extruded thermoplastic be used for ISA symbols? Technically yes via a stencil, but the result is rougher than a preformed template. Most installers use preformed for symbols because the edge sharpness and the consistent fill matter for visibility and inspector approval.
Can preformed thermoplastic be used for lane lines? It is sold in long roll formats but the per-foot cost is significantly higher than extruded. Preformed roll for lane lines is rare in commercial parking-lot work; it is more common on highway gore areas and special markings.
Do preformed templates need glass beads dropped at install? Most premium preformed SKUs come with factory-bonded beads in the top surface. Some lower-cost preformed product still benefits from a supplemental bead drop. Check the manufacturer's data sheet for the specific SKU.
Is there an MUTCD difference between extruded and preformed thermoplastic? No. MUTCD specifies dimensions, colors, and patterns; the material standard (AASHTO M249) covers both formats. Either is compliant when applied per spec.
Can preformed thermoplastic be applied at lower substrate temperatures? Slightly. Some preformed manufacturers list a 40-degrees-F substrate minimum versus the 50-degrees-F minimum for extruded. This widens the install window in shoulder seasons by a few weeks. Always check the SKU data sheet.