Flex Caulk

What Is Flex Caulk?

Flex Caulk is a high-performance, hybrid polymer caulk that can handle a wide array of applications. Our Trigger Flow Nozzle™ allows you to control the flow, making it perfect for hard-to-reach places.

Do I Need a Caulking Gun?

No! Thanks to our Trigger Flow Nozzle™, there’s no need for a caulking gun.

Is it Important to Read ALL the Directions before using Flex Caulk?

Yes. To understand the best way to apply, use, and preserve your Flex Caulk, it’s important to read ALL directions before use.

Is Flex Caulk Chemical, UV, and Mildew Resistant?

Yes. Flex Caulk is a high-performance, extremely durable caulk that can be used indoors or outdoors.

What Are Some Recommended Applications for Flex Caulk?

Flex Caulk adheres to virtually any surface, wet or dry. It is excellent for: hard-to-reach areas, bathrooms, kitchens, sinks, showers, toilets, backsplashes, countertops, baseboards, molding, pipes, skylights, windows, doors, auto and boat repairs,

To What Surfaces Can I Apply Flex Caulk?

Flex Caulk has outstanding bonding and adhesion to most common materials found around the home, including difficult substrates and porous materials.

How Much Will One Container of Flex Caulk Cover?

The pressurized containers will provide between 30 - 35 linear ft of coverage. The tubes will provide about 12 - 18 linear ft of coverage.

Can Flex Caulk Be Applied to Wet Surfaces?

Yes! Flex Caulk is 100% waterproof and can be applied to wet or dry surfaces. It will even cure underwater.

How Do I Prepare the Surface?

Before applying Flex Caulk, be sure all previous caulk is removed from the surface. Scrape it off with a tool that won’t harm the surface, like a plastic putty knife. After removing, clean the surface of dirt, oil, grease, and debris. Flex Caulk can

How Do I Control the Bead Size?

To control the bead size, adjust the flow setting to the desired amount between MIN and MAX. The thickness of the bead depends on the flow setting and the speed you move the nozzle. For the most consistent bead size, make sure that the trigger is ful

How Do I Open Flex Caulk?

To open Flex Caulk, remove the safety tab and Snap and Save cap.

Do I Need to Cut the Nozzle?

No. The nozzle is precut.

Can I Paint Flex Caulk?

Yes, Flex Caulk is fully paintable. We recommend using high-quality latex paints.

At What Temperatures Can Flex Caulk Be Applied?

Flex Caulk is best applied to surface temperatures from 0°F to 150°F. Once fully cured, Flex Caulk can withstand temperatures from -40°F up to 200°F, making it great for outdoor applications.

How Long Do I Have to Tool / Smooth It?

Approximately 10 minutes. Flex Caulk begins to form a skin at this time.

How Do I Clean Uncured Flex Caulk?

If Flex Caulk is not cured, use a clean, dry rag or paper towel to remove it. Do not use water. Denatured alcohol or mineral spirits can be used to speed up the process.

How Long Does It Take to Cure?

Flex Caulk will fully cure in about 24 – 48 hours.

How Do I Remove Flex Caulk once Cured?

Flex Caulk can be removed by scraping underneath the material with a straight-edged, or caulk remover tool. A nylon brush can be used to help remove residue.

In What Sizes and Colors Can I Purchase Flex Caulk?

Flex Caulk is available in pressurized container or a squeeze tube in both White and Clear.

Why is My Can of Flex Caulk Not Working?

The can could be in the off position or clogged. Unscrew the nozzle and check if there is a blockage. You can use a pin to push the cured product out to clear the nozzle. Screw the nozzle on and continue use.

How Do I Store Flex Caulk?

Using a clean, dry rag or paper towel, wipe the nozzle clean if needed and replace Flex Caulk’s Snap & Save cap. Turn the trigger beyond the min setting to close. Store in a cool, dry place and do not store above 120° F.

What is the Shelf Life of Flex Caulk?

When stored properly, Flex Caulk will last for years.

Will Flex Caulk Shrink?

Flex Caulk will not shrink, crack, or peel.

Does Flex Caulk Have a Smell / Odor?

Flex Caulk is virtually odorless. And cures to an odorless finish.

Is Flex Caulk Safe for Use Around Drinking Water and Food?

Flex Caulk has not been tested for safety around food or potable water sources.

What's the Difference Between Flex Caulk and Flex Shot?

Flex Caulk is a hybrid polymer caulk, while Flex Shot is a thick siliconized rubber sealant. Both can be used around your sink, countertops, shower, and bathtub. Flex Caulk can be painted and offers a greater degree of adhesion while Flex Shot is eas

How Do I Know My Can of Flex Caulk is Empty?

As you near the end of the can, the caulk will begin to come out much slower. Make sure the Trigger Flow Nozzle is on max and wide open. If nothing still comes out, the can is empty.

What are Some Best Practices for Application?

Hold at 45-degree angle. Use a smooth and even motion while pressing trigger fully. Smooth it out with your finger or a gap filler tool.