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Internet # 206046711

Model # 18436

Store SKU # 1001392637

Alex Fast Dry 5.5 oz. White Acrylic Latex Plus Silicone Caulk

$4.48
  • Latex caulk seals cracks and gaps around windows, doors and more
  • Strong, durable adhesion to multiple surfaces and 100% waterproof
  • Crack resistant and paint ready after 20 minutes of application
  • View More Details

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Product Details

About This Product

DAP Alex Fast Dry Acrylic Latex Caulk Plus Silicone is specifically formulated to meet the demanding needs of Professional Painters and deliver outstanding paint finish results. It can be brush painted in 20 minutes after application or spray painted immediately, so the job gets finished faster. Durable, flexible, white caulk won't crack or discolor paint and doesn't pick up dirt. It has outstanding adhesion to a wide variety of surfaces and provides a 100% waterproof seal. It applies smoothly and easily. Cured caulk is mold and mildew resistant. Exceeds ASTM Specification C834. Interior/exterior use.

Highlights

  • Paintable caulk is paint ready in 20 minutes with brush or immediately with spray paint
  • Fast drying caulk works on many surfaces including wood, plaster, drywall
  • Top applications include baseboards, crown molding, interior door casings and interior wood trim
  • White caulk won't shine through or discolor paint, is low in odor and has easy water clean-up
  • Acrylic latex caulk with silicone works for interior and exterior paint projects
  • Fast dry caulk is ready for brush on paint in 20 minutes and covers 30 linear feet at a 3/16 in. bead size
  • 100% waterproof painters caulk is mold and mildew resistant when cured
  • Fully cures in 24 hours
  • Return Policy
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Product Information

Internet # 206046711

Model # 18436

Store SKU # 1001392637

Additional Resources

Shop All DAP
From the Manufacturer

Specifications

Individual size (oz.): 5.5 oz

Dimensions

Individual size (oz.)

5.5 oz

Details

Caulk and Sealant Application

Multipurpose

Caulk and Sealant Type

Latex

Color/Finish

White

Dry Color Family

White

Dry to Touch (min.)

20 min

Features

Moisture Resistant, Mold and Mildew Resistant, Paintable

Interior/Exterior

Exterior, Interior

Number of Tubes Included

1

Paint Tool Product Type

Caulk

Returnable

90-Day

Series

Alex Fast Dry

Warranty / Certifications

Manufacturer Warranty

See Product Package

Questions & Answers

Is it paintable?
ByJan 27, 2026
1 Answer | 
Answer This Question

Thank you for posting your inquiry on DAP ALEX FAST DRY. As indicated on the product package label and supporting product literature: Allow 20 minutes for skin to form on caulk prior to painting with brush or roller. Can be spray painted immediately with latex paint. Allow additional dry time in high humidity or cool temperatures. Should you have any additional questions or require further assistance, please contact DAP’s Technical Customer Service Department at 888-327-8477.

By|Jan 27, 2026


    Can this be used to seal the exterior of my rv? Around windows and all trim.
    ByDec 22, 2025
    1 Answer | 
    Answer This Question

    Thank you for posting your inquiry on DAP ALEX FAST DRY. DAP ALEX FAST DRY is designed, tested, marketed, labeled, and recommended for use in residential construction applications. It is not designed, tested, marketed, labeled or recommended for use in transportation applications (marine, automotive, etc.). For most automotive applications, we would recommend the use of DAP Auto/Marine 100% RTV Silicone Sealant, DAP Item Number 7079800694. Should you have any additional questions, wish to discuss our recommendation or your project in more detail, please feel free to contact DAP’s Technical Customer Service Department at 888-327-8477.

    By|Dec 22, 2025


      What temperature can this be applied on
      ByDec 3, 2025
      1 Answer | 
      Answer This Question

      Thank you for posting your inquiry on DAP Alex Fast Dry. As indicated on the product package label and supporting product literature: Application temperature range is between 40ºF to 100ºF. Should you have any additional questions or require further assistance, please feel free to contact DAP’s Technical Customer Service Department at 888-327-8477.

      By|Dec 3, 2025


        Is this good to use around kitchen sink where the sink meets countertop for sealing and protect against moisture and mildew
        ByNov 30, 2025
        1 Answer | 
        Answer This Question

        Thank you for posting your inquiry on DAP ALEX FAST DRY. DAP ALEX FAST DRY is designed, tested, labeled, and marketed for use as a general-purpose trim and molding sealant, it is not designed, tested, labeled, marketed, or recommended for use as a kitchen and bath sealant. For kitchen and bath applications/projects, we would recommend the use of a specialized kitchen and bath product such as: DAP KWIK SEAL ULTRA, DAP AMP Advanced Modified Polymer Waterproof Kitchen, Bath and Plumbing Sealant or DAP Silicone MAX Premium Kitchen & Bath Sealant. Should you have any additional questions or require further assistance, please contact DAP’s Technical Customer Service Department at 888-327-8477.

        By|Dec 1, 2025


          can this be used to fill exterior screw holes in wood
          ByNov 3, 2025
          1 Answer | 
          Answer This Question

          Thank you for posting your inquiry on DAP ALEX FAST DRY. DAP does not recommend the use of any caulk/sealant for this type of application (screw hole filling). As indicated on the product package label and supporting product literature: "Not for continuous underwater use, filling butt joints, surface defects, tuck-pointing or expansion joints." At your convenience, please contact DAP’s Technical Customer Service Department at 888-327-8477, so that we can obtain some additional information from you about your intended project and to discuss more appropriate repair alternate product options.

          By|Nov 4, 2025


            Do you need a caulk gun to apply?
            BySep 26, 2025
            1 Answer | 
            Answer This Question

            Thank you for posting your inquiry on DAP ALEX FAST DRY. DAP ALEX FAST DRY (Squeeze Tube) does not require the use of a caulk gun for dispensing and can be dispensed by moderate hand squeezing action. Should you have any additional questions or require further assistance, please free to contact DAP’s Technical Customer Service Department at 888-327-8477.

            By|Dec 21, 2025

              (2)

              is this adhesive caulk
              BySep 18, 2025
              1 Answer | 
              Answer This Question

              Thank you for posting your inquiry on DAP Alex Fast Dry Acrylic Latex Caulk. DAP Alex Fast Dry is a siliconized acrylic polymer and not classified as an adhesive caulk. Should you have any additional questions or require further assistance, please feel free to contact DAP’s Technical Customer Service Department at 888-327-8477.

              By|Sep 22, 2025


                Does this clean up with water?
                ByAug 21, 2025
                1 Answer | 
                Answer This Question

                Thank you for posting your inquiry on DAP Alex Fast Dry Acrylic Latex Caulk. As indicated on the product package label and supporting product literature: "Easy-to-use, water-based formula and Easy water clean-up & low odor", signaling that this is water-based formula. Should you have additional questions or require further assistance, please contact DAP’s Technical Customer Service Department at 888-327-8477.

                By|Oct 3, 2025

                  (1)

                  Viewing 1-8 of 78

                  Customer Reviews

                  4.7 out of 5

                  • 4.7 out of 2,841 reviews
                  • 77% recommend this product
                  Filter by:
                  Showing 1-10 of 2,841 reviews
                  We use this caulk to finish up some built-in bookshelves using IKEA shelves as the base. Since the shelves were laminated MDF, we were worried about adhesion. This product worked great. We let it cure for a couple of days. No issues.
                  by
                  I bought this fast-drying caulk in a squeeze tube specifically for decorating gingerbread display houses. It was perfect for piping various thicknesses of "icing," and for hiding the hot glue seams. However, if using candy in your design, be aware that the caulk will melt/break down the candy -- it gets pretty drippy
                  by
                  • Verified Purchase
                  1 found this review helpful
                  The caulk was priced great. It dried as stated. Went on smooth is the color of the container. Easily painted.
                  by
                  This customer chose to rate the product and not provide text.
                  by
                  • Verified Purchase
                  Working on a DIY renewal of our stairs. This product works great to cover those gaps between the moldings and paint over it. It looks 100% better.
                  by
                  • Verified Purchase
                  This customer chose to rate the product and not provide text.
                  by
                  • Verified Purchase
                  This customer chose to rate the product and not provide text.
                  by
                  • Verified Purchase
                  The product is horrible
                  We built a few walk in closets and the Fast Dry 20 minute paintable would not even get taky in 2 hrs. It wouldn't cover anything. It is the worst product I ever used and now have to go back to the customer to do it over again with a different brand that actually works as designed. Waste of money for a low quality product/
                  by
                  Response from DAPProductExpertMar 18, 2025
                  Thank you for posting your feedback. DAP ALEX FAST DRY. ALEX FAST DRY is an acrylic-latex (water-based) formula; accordingly, the sole drying mechanism is the evaporation of water. Dry time (paint time) can be significantly impacted by cool or humid application conditions or by thick (deep) applications of the product. As indicated on the product package label and supporting product literature: "Cooler temperatures and higher humidity will slow down dry time." Because you did not provide any background regarding your project or application conditions, it is difficult to provide a more detailed response. Should you wish to provide this information, so we can address your concern, please feel free to contact DAP’s Technical Customer Service Department at 888-327-8477. DAP
                    3 found this review helpful
                    I've done a lot of caulking in my lifetime and I can say this is absolutely the worst caulk I've ever used. It would not stop running out of the cartridge after I released all pressure from the gun on the plunger on the cartridge. What a mess! Took me 4 times longer to do a little caulking job than normal. Would not recommend this brand.
                    by
                    Response from DAPProductExpertJun 20, 2024
                    Thank you for posting your feedback. We are sorry to see your low star review on DAP Alex Fast Dry Acrylic Latex Caulk Plus Silicone. Based on your commentary, it would appear that the cartridge may have an entrapped air pocket. Entrapped air can lead to afterflow (product dispensing after application force applied to the caulking gun has stopped). At your convenience, please contact DAP’s Technical Customer Service Department at 888-327-8477 so that we can obtain some additional information from you about your experience. DAP
                    • Verified Purchase
                    1 found this review helpful
                    This customer chose to rate the product and not provide text.
                    by
                    • Verified Purchase
                    Showing 1-10 of 2,841 reviews