Loxon Block Filler: Paint Over Or Start Fresh?

can you put loxon block filler over painted surfaces

Loxon is a popular product used for painting concrete and masonry surfaces. It is available in different varieties, including Loxon Block Surfacer, Loxon Masonry Primer and Coating, and Loxon XP Exterior Waterproofing System. When using Loxon, it is important to consider the type of surface, the age of the concrete or masonry, and whether waterproofing and pinhole-free finish are required. While some sources suggest that Loxon can be used over painted surfaces, it is important to note that it may not be suitable for all types of paint or surfaces. In some cases, a primer may be necessary before applying Loxon to ensure proper adhesion and durability. Additionally, the thickness of the Loxon coating and the number of coats applied can impact the final result.

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Loxon XP is self-priming and can be used on bare block walls

Loxon XP is a self-priming product that can be used on bare block walls. It can be used without a primer, as it is an "all-in-one" product. However, it is essential to apply two coats of Loxon XP to the bare block walls for the best results.

Loxon XP is a popular choice for painting concrete and masonry surfaces, including block walls. It is a high-build product that provides excellent texture and coverage. When using Loxon XP, it is recommended to spray it directly into the block and then backroll it with a large nap, such as a 1 1/4 inch roller. By working it into all the cracks and holes, you can achieve a smooth finish.

Additionally, Loxon XP offers excellent moisture properties compared to other block fillers. It is essential to note that if the concrete is older than 28 days and has a low pH, it is advisable to use a regular Loxon primer followed by a top coat of paint. This ensures proper adhesion and protection.

Loxon XP is a versatile product that can be used on both new and existing masonry surfaces with high pH levels, both indoors and outdoors. It is specifically designed for exterior use and provides waterproofing capabilities when applied at the recommended thickness. For waterproofing, the application thickness should be doubled to 15 mils wet or 8 mils dry.

While Loxon XP is a self-priming and effective solution for bare block walls, it is always recommended to refer to the product's data sheet for specific instructions and precautions. The data sheet provides detailed information about the product's usage, coverage, and any potential limitations, ensuring a successful application.

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Loxon Block Surfacer has excellent moisture properties

Loxon Block Surfacer is a primer sealer that can be applied to fresh mortar after just seven days. It is a creamier and easier-to-spray alternative to block filler. It has excellent moisture properties compared to other block fillers and can help prevent water damage. It is also one-third lighter than other block filler products, allowing for faster backrolling with less effort.

Loxon Block Surfacer is ideal for use on concrete walls, and its moisture properties make it suitable for preventing water damage and moisture control. When used on concrete that is older than 28 days and has a low pH, it should be followed up with a coat of Superpaint.

The Loxon Block Surfacer has excellent pore-filling characteristics, reducing the usage of the topcoat required. It can be used as a primer before painting concrete walls, and its moisture properties will help prevent water damage and ensure proper moisture control.

Loxon Block Surfacer is a suitable product for those looking for a quick solution, as it can be applied to fresh mortar and helps prevent project delays. Its moisture properties make it a good choice for those concerned about water damage and moisture control, and its lightweight formula allows for faster application and labour savings.

Overall, the Loxon Block Surfacer is a recommended product for those seeking a primer sealer with excellent moisture properties, quick application, and water-damage prevention capabilities. Its lightweight formula and pore-filling characteristics make it a convenient and effective choice for various projects, especially those involving concrete walls.

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Loxon Masonry Primer and Coating can be tinted dark tan

When considering whether to use Loxon Block Filler over painted surfaces, it is important to note that Loxon products are specifically designed for use on masonry substrates and are not typically intended for application over paint. Loxon Block Filler, in particular, is meant to fill pinholes and provide a smooth surface for painting.

If you are looking to apply Loxon Block Filler over a painted surface, it is crucial to assess the condition of the existing paint. The surface must be properly prepared to ensure adequate adhesion of the Loxon product. Any flaking, peeling, or poorly adhered paint should be removed before applying Loxon Block Filler. It is recommended to consult with a professional painting contractor to determine the best course of action for your specific situation.

Additionally, it is worth considering the purpose of using Loxon Block Filler. If you are seeking to fill pinholes and create a smooth surface for a new coat of paint, then using Loxon Block Filler over painted surfaces may not be necessary. In some cases, a light sanding of the existing paint may be sufficient to create a suitable surface for your desired topcoat.

Overall, while it may be possible to apply Loxon Block Filler over painted surfaces with proper preparation, it is essential to carefully evaluate the condition of the existing paint and the specific requirements of your project. Consulting with a professional will help ensure that you achieve the desired results and maintain the integrity of your painted surfaces.

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Loxon Block Filler is thicker than other brands

Loxon Block Filler is a great option for painting concrete walls and is especially useful for filling in pinholes in concrete blocks. It is also an excellent choice for waterproofing, as it can be applied in two coats for effective water resistance.

One key advantage of Loxon Block Filler is its thickness. Users have noted that Loxon Block Filler is about two times thicker than competing brands, such as SW. This makes it a great option for achieving a smooth and even finish on concrete surfaces. The thicker consistency also means that it can fill in larger gaps and holes more effectively than thinner fillers.

Additionally, Loxon Block Filler is creamier and easier to spray than other block fillers, making it a more convenient option for painting projects. It also has excellent moisture properties compared to other fillers, which is crucial for maintaining the integrity of concrete walls.

When using Loxon Block Filler, it's important to follow the recommended thickness guidelines. For a single coat, a thickness of 15 mils wet or 8 mils dry is sufficient. However, if you're looking for waterproofing capabilities, it's recommended to double the thickness by applying two coats.

Loxon Block Filler is a reliable and effective choice for painting concrete walls, offering superior thickness, ease of application, and excellent moisture resistance.

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Loxon Concrete and Masonry Primer Sealer is rated for brick

Loxon Concrete and Masonry Primer Sealer is a product that is rated for use on brick. It is designed to be breathable, which is an essential aspect of painting brickwork, as sealing brickwork with a product that cannot breathe can destroy it.

There are differing opinions on the best way to paint brickwork. Some people say that raw brick needs to be primed first with Loxon primer/sealer, while others say that Loxon XP can be used directly onto raw brick, potentially saving time and the need for an additional coat of paint.

Loxon XP is an "all in one" product that can be used without a primer. However, some people have said that the weight and elasticity of the XP can cause the face of the brick to delaminate.

If waterproofing is not a concern, then a regular Loxon primer followed by a topcoat of your choice is a good option for painting brickwork. This will provide a breathable surface and protect the brickwork.

Loxon Block Filler is another product that can be used to fill pinholes in concrete block walls before painting. It is creamier and easier to spray than other block fillers and has excellent moisture properties. However, if waterproofing and pinhole-free surfaces are a priority, other products may be more suitable.

Frequently asked questions

Yes, Loxon block filler can be applied over painted surfaces. However, it is primarily intended for use on concrete or brick walls and is especially useful for filling pinholes in concrete blocks.

Loxon block filler can be sprayed or rolled onto the surface. If spraying, ensure you work it into all the cracks and holes, then lay it off and apply a second light coat. If rolling, use a large nap, such as a 1 1/4, and work in sections.

Loxon block filler is not a primer, and it is recommended to use a separate primer before applying a top coat of paint. However, Loxon also offers primer products, such as the Loxon Masonry Primer and Coating, which can be tinted and used as a primer before applying your chosen exterior paint.

Yes, there are several alternatives to Loxon block filler. Standard latex primers or other block fillers can be used, depending on the specific requirements of the project. Some specific alternatives mentioned in forums include the SW Painting Systems Catalog, ProBlock, and Benjamin Moore paints.

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