Vinyl plank flooring has become an increasingly popular flooring option for many homes. It is affordable, durable, and easy to install. However, one challenge that can come up during installation is dealing with gaps between the planks. Choosing the right gap filler is important to help finish off your vinyl flooring installation.
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What causes gaps between vinyl planks?
There are a few common reasons gaps can occur between vinyl planks during installation:
- Uneven subfloor – If the subfloor is not completely flat and level, it can cause some planks to be higher or lower than others, creating gaps.
- Planks not properly locked together – Vinyl planks click and lock together on the sides. If they are not fully connected, it can leave small gaps.
- Improper spacing – Leaving too much or too little space between planks during installation will lead to gaps.
- Normal contraction and expansion – Vinyl planks expand and contract slightly with temperature changes. This can cause gaps to appear over time.
Gaps that are 1/8 inch or less are generally considered acceptable. Larger gaps may need to be filled in for both aesthetic reasons and to prevent debris from getting stuck.
Should you fill in gaps between vinyl planks?
In general, it is recommended to fill gaps that are 1/4 inch or larger between vinyl planks. The advantages of filling gaps include:
- Improves appearance – Filler creates a smooth, seamless look.
- Prevents dirt buildup – Debris can get trapped in unfilled gaps.
- Reduces moisture issues – Gaps can allow moisture under the planks over time.
- Minimizes tripping hazards – Filling helps level any uneven planks.
For very small gaps under 1/8 inch, filling is optional and mainly for appearance. Any gaps 1/4 inch or larger should be filled to prevent long-term issues.
What to look for in a vinyl plank gap filler
Here are some key features to look for when shopping for the best gap filler for vinyl flooring:
- Vinyl-friendly formula – Make sure the filler is specifically designed for use with vinyl flooring.
- Flexibility – It should remain somewhat flexible to move with the planks.
- Precision nozzle – A fine applicator tip lets you evenly fill narrow gaps.
- Color match – Choose a filler that dries to match or blend with your vinyl planks.
- Waterproof – Since vinyl plank is waterproof, the filler should be too.
- Quick drying – Look for a fast-drying formula so you can walk on the floor soon after filling.
Steer clear of silicone sealants. While they can work, silicones do not dry hard, can attract dirt, and make future repairs difficult.
Best gap fillers for vinyl plank flooring
Based on the above criteria, here are 5 of the top-rated gap filling products for vinyl plank floors:
| Product | Key Features |
|---|---|
| DAP Dynaflex 230 Premium Vinyl Flooring Caulk |
|
| Bostik EzPoxy Tan Vinyl Gap Filler |
|
| Roberts 70-100 Gap Filler for Resilient Flooring |
|
| Magnum SnapStone Polyurethane Floor Gap Filler |
|
| OmniFlex Vinyl Flooring Gap Filler |
|
1. DAP Dynaflex 230 Premium Vinyl Flooring Caulk
DAP Dynaflex 230 is designed specifically for filling gaps in vinyl plank flooring. It goes on smoothly and dries into a durable, flexible silicone rubber seal. The precision applicator nozzle allows you to fill gaps as narrow as 1/8 inch.
This caulk remains flexible to absorb movement and contraction of the planks. It is mold and mildew resistant when dry. The formula matches the color of natural wood and stone vinyl looks once cured. DAP Dynaflex 230 can be walked on in as little as 30 minutes.
2. Bostik EzPoxy Tan Vinyl Gap Filler
Bostik EzPoxy is a two-part epoxy vinyl gap filler that provides a quick and durable fill for flooring gaps. It is specially formulated to match the color of wood and tan vinyl planks once dried.
This vinyl gap filler goes on easily and self-levels as it dries. The formula cures rapidly, allowing foot traffic in about 30 minutes. It remains somewhat flexible rather than becoming brittle over time. EzPoxy is water and stain resistant.
3. Roberts 70-100 Gap Filler for Resilient Flooring
Roberts 70-100 is a versatile vinyl plank gap filler compatible with all types of vinyl flooring. It has a medium viscosity formula that flows easily into gaps.
This filler dries transparent for a seamless look on any color plank. The flexible acrylic latex formula allows for contraction and expansion of the flooring. It resists cracking, chipping, and debris buildup. Roberts 70-100 gap filler is completely waterproof when cured.
4. Magnum SnapStone Polyurethane Floor Gap Filler
SnapStone Polyurethane Filler creates a waterproof seal between vinyl planks. This polyurethane-based formula applies smoothly and self-levels as it dries.
This gap filler works well for both large and very fine gaps. The flexibility of the polyurethane allows it to resist cracking as the flooring expands and contracts. It provides excellent adhesion and dries transparent for seamless repairs.
5. OmniFlex Vinyl Flooring Gap Filler
OmniFlex Gap Filler is designed for color-matching with any vinyl plank flooring. It goes on white and dries clear to invisible blend with your flooring.
The precision nozzle allows you to cleanly fill gaps as small as 1/8 inch. OmniFlex stays permanently flexible when cured to prevent cracking and shrinkage. It is mold and mildew resistant.
Tips for applying vinyl plank gap filler
Here are some helpful tips for getting the best results when applying gap filler to your vinyl floor:
- Read the product instructions carefully and follow them. Pay attention to drying times.
- Make sure gaps are clean before filling. Remove any debris with a utility knife or vacuum.
- Wider gaps will require more than one application. Allow each layer to dry before adding more.
- Hold the applicator tip down in the gap as you smoothly fill to prevent air bubbles.
- Wipe away any excess filler immediately with a damp cloth.
- Run a plastic putty knife along filled gaps to smooth and level the filler.
- Avoid walking on the filled floor for at least the recommended dry time.
- Consider wearing shoe covers if you must walk on the floor before filler is cured.
Conclusion
Filling gaps between vinyl flooring planks results in a more attractive and durable floor. The best vinyl plank gap fillers feature flexible, waterproof formulas designed for use with vinyl flooring. Products like DAP Dynaflex 230, Bostik EzPoxy, Roberts 70-100, Magnum SnapStone, and OmniFlex are top-rated options.
When shopping for vinyl plank gap filler, look for one that offers flexibility, vinyl compatibility, color-matching ability, precision application, and quick drying. Follow the product directions closely and use painter’s tape along the edges if needed for the cleanest results. With the right gap filler and proper application, you can achieve a seamless look for your vinyl plank flooring.