Presta - HEADLIGHT SEALANT (6.5 OZ)(137306) : 137306

1. How long does it take to cure headlights in the following conditions?

Time for partial cure and customer can drive vehicle:

Full Sun – No Clouds 20-30 minutes after flashing

Partly Cloudy 30-45 minutes after flashing

Overcast 45-60 minutes after flashing

UV Light (A or B) 20-30 minutes after flashing

a. Storage

i. Recommended storage is at room temperature, 72°F

b. Application of Can

i. When applying sealant, Presta recommends that the can is at room

temperature or a few degrees warmer

1. If can is very cold, can of sealant can be placed in warm water

(no hotter than 90 degrees) or run under warm tap water to

warm up. Temperature of sealant should be slightly warmer

than room temperature when applied.

a. What happens if the light is not completely cleaned before spraying?

i. If the light is not completely cleaned with IPA or Denatured Alcohol, you

might not get perfect adhesion

b. If headlight is warm, could this cause adhesion issues?

i. This can actually help adhesion!

c. If headlight is cold, could this cause adhesion issues?

i. Yes. For best results, headlight should be at room temperature when

spraying sealant. This can be done by turning headlights on for 3-5 minutes

prior to spraying Headlight Sealant. This will also help sealant flash.

d. What happens if factory sealant is not completely removed

i. This will effect adhesion and sealant could flake off

Humidity Use heat to dry cloudiness away – this can be done with

use of a hair dryer on high heat setting, low blow setting or

with a heat gun

Rain Not recommended

a. If there is moisture or high humidity, how do you recommend getting rid of the

moisture so the light does not haze?

i. A Hair Dryer or heat gun will remove moisture and help sealant flash

appropriately. Use hair dryer on highest heat level but lowest blow setting

b. What happens if you spray a headlight during the rain?

i. Do not apply or cure Headlight Sealant in rainy conditions.

c. How long should Headlight Sealant not come into contact with water?

i. 24-hours

d. How long should you wait to wash a car after curing?

i. For tunnel or pressure wash, wait at least 24-hours.

a. How does outside temperature effect curing?

i. Outside temperature will not effect curing time once sealant has flashed off.

b. How long should you wait to drive a car before headlight is partially cured

i. See table in section 1.

c. What UV light do you recommend if someone is going to purchase a light?

i. 400 UV A light is safest and recommended. You can also use a UVB light, but

if using a UVB we recommend that you wear protective eyewear and cover

any exposed skin.

ii. Cure 20-30 minutes with UV light

a. Can Headlight Sealant be sprayed overtop factory sealed headlight to prolong

protective coating?

i. NO! This will not prolong the protection of your original factory sealed

headlights. Factory sealant contains surface modifiers that can prevent good

adhesion of the UV sealant.

b. How long should the sealant last?

i. There is an 18-month expected life of the sealant when applied accurately

c. Mobile Detailers insisting on applying sealant outdoors

i. When applying sealant, try to keep headlights out of the sun until the solvent

flashes off. We recommend using a large umbrella, which can be purchased

from Costco for about $39.

ii. If it is windy, this can affect the smoothness of the sealant. Spray or apply

alcohol onto the headlight and before it dries, spray sealant. This will help

the sealant flash off properly.

iii. Asphalt or darker paving surface is best to minimize UV reflection

d. What type of protective equipment should I wear when I spray the sealant?

i. Presta recommends weari