Ultra Light-Weld 204-CTH-F-T
Light-curable industrial adhesive · US · manufacturer-sourced
How long does Dymax Ultra Light-Weld 204-CTH-F-T take to dry?
Short answer
Light-cure routine
The lamp sets the surface; the stated time finishes the job
- Apply the Light-curable industrial adhesive in thin layers
- Cure under the lamp for the stated time
- Let any post-cure finish before handling
This product’s stated stages Quoted at 23°F
- Set1 minute
Worth noticing: The manufacturer states only one timing here (set, 1 minute); nothing else is inferred.
Common mistake: Curing a thick layer under a weak lamp; the surface sets while the inside stays liquid.
Bond-strength path
Assembly, handling and full load are different stages
Time the light cure
Your countdown
Stated times
- Set / hardened1 minute
From Dymax data sheet · checked 2026-10-25. Anything not listed isn’t stated by the manufacturer.
Manufacturer website: dymax.com
Conditions & fine print
- Stated conditions: 23°F (-5°C)
- Fixture and cure times assume the lamp type and intensity stated on the data sheet. Shadowed areas and thick bond lines need more exposure or a secondary cure.
- Region US. Formulas can differ between countries; check your container.
- Set / hardened: Fixture time is the time to reach 0.1 N/mm² (10 psi) shear strength between glass slides under the stated lamp.
- Entered from the cited manufacturer documentation. Check the current label for the exact formula and region. Report outdated information
- Actual results depend on preparation, thickness, ventilation, temperature, humidity, mixing and substrate.
Confirm this is your product
Closely named formulas, colors and regional versions can use different times. Match these details to your container before starting a countdown.
- Exact listing
- Dymax Ultra Light-Weld 204-CTH-F-T
- Variant
- Light-curable industrial adhesive
- Region
- US
- Listed use
- light-cure bonding
- Timed stages recorded
- set
- Source checked
- 2026-10-25
Documentation: Technical data sheet · REV. 12/26/2018
Condition attached to the stated time: Fixture time is the time to reach 0.1 N/mm² (10 psi) shear strength between glass slides under the stated lamp.
About this product
A light-curable adhesive whose sheet is one of the few to list five different lamps, from a 2000-EC to the BlueWave LED Prime UVA, plus conveyor speeds of 8.2 m/min under two different systems. It reaches fixture in 1 second on a 5000-EC.
Using this specific product
Dymax Ultra Light-Weld 204-CTH-F-T is listed here as the Light-curable industrial adhesive version for light-cure bonding. For curing with light, the useful question is not simply whether the surface looks finished—it is whether the exact next-action milestone shown above has been reached.
Before you start
- Confirm the package says Light-curable industrial adhesive; related versions can use different timing.
- For light-cure bonding, pay particular attention to lamp type, irradiance, distance, bond-line thickness and shadowed areas.
- Fixture time is the time to reach 0.1 N/mm² (10 psi) shear strength between glass slides under the stated lamp.
How to check readiness
Confirm the joint is fixtured, then give the stated extra exposure or secondary cure for full properties. The data sheet gives the fixture time in seconds, so the page uses the one-minute minimum the calculator can show. The sheet gives a fixture time of 1 second under 2000-EC and 5000-EC lamps and 0.2 second under BlueWave lamps.
Avoid this mistake
Fixture time is only the first step; a full cure takes longer than the time the part stays in the light.
Questions
How long does this product take to dry?
Dymax states: The data sheet gives the fixture time in seconds, so the page uses the one-minute minimum the calculator can show. The sheet gives a fixture time of 1 second under 2000-EC and 5000-EC lamps and 0.2 second under BlueWave lamps. Conditions: Fixture time is the time to reach 0.1 N/mm² (10 psi) shear strength between glass slides under the stated lamp.. These are the manufacturer’s stated times, not a guarantee.
What belt speed does the 204-CTH-F-T sheet give?
8.2 m/min (27 ft/min) with the UVCS conveyor fitted with either a 5000-EC lamp or a Fusion F300S.
What affects how long this product takes to dry or cure?
Fixture and cure times assume the lamp type and intensity stated on the data sheet. Shadowed areas and thick bond lines need more exposure or a secondary cure. Follow the product label for your conditions.