Can I use latex caulk in the shower?

No, use 100% silicone for wet areas. Latex caulk is not waterproof and will fail in constant water exposure.

How long before I can paint?

Most latex caulk is paintable in 2-4 hours. Check the label for specific dry times.

Acrylic Latex CaulkGenerating image…

Adhesives & Sealants

Sealants

Budget: $2-$4 (basic interior) | Mid-range: $4-$7 (siliconized or exterior grade) | Premium: $7-$12 (premium elastomeric or Big Stretch)

Acrylic Latex Caulk: Paintable Sealant for Trim, Gaps & Cracks (2026)

Prepared by Lumberama's Building Materials Team

|Last updated May 25, 2026|Sources & methodology

Acrylic latex caulk is a water-based, paintable sealant used to fill gaps, cracks, and joints in interior and exterior trim work. It bridges the gap between trim and walls, baseboards and floors, and around window and door casings. Easy to apply and tool, it cleans up with water and accepts paint for a seamless finish.

Key Features

Paintable with latex or oil-based paint; Water cleanup while wet; Flexible formula resists cracking; Interior and exterior formulas; Siliconized versions for added flexibility

Specifications

Type: acrylic latex

siliconized acrylic latex | Colors: white

clear

colors | Tube: 10.1 oz cartridge | Cure: 2-4 hours to paint

24 hours full | Movement: +/- 12.5-25% | Temperature: 40°F-100°F application

Applications

Baseboard to wall and floor gaps; Crown molding joints; Window and door casing gaps; Interior corner cracks; Exterior siding and trim joints

Installation Overview

Clean surfaces of dust and loose material. Cut cartridge tip at 45° angle to desired bead width. Apply steady bead along gap or joint. Smooth with wet finger or caulk tool. Wipe excess with damp cloth. Allow 2-4 hours dry time before painting.

Pros & Cons

Pros

✓ Paintable for seamless finish; Easy water cleanup; Simple to apply and tool; Affordable and widely available

Cons

✗ Not waterproof like silicone; Can shrink as it dries; Must be painted for UV protection outdoors; Not for constant water exposure

Top Brands

DAP Alex Plus

Sashco Big Stretch

Code Requirements

Exterior caulk must be UV-resistant and paintable. Must meet ASTM C834 for latex sealants. Fire-rated assemblies may require specific sealant types per UL listing.

Buying Tips

DAP Alex Plus is the go-to for interior trim caulking; Sashco Big Stretch is excellent for large gaps and areas with movement; Apply in thin beads - thick beads shrink and crack more