MH Ready Patch vs Bondo: A Detailed Comparison

MH Ready Patch and Bondo are two popular options for filling holes, cracks, and dents on various surfaces. While both products are designed for similar purposes, there are important differences between them.

In this post, we’ll compare MH Ready Patch and Bondo in depth, highlighting the differences in ingredients, features, application technique, pricing, and when to use each product.

Whether you’re looking to repair drywall, plaster, wood, or concrete, keep on reading to find out whether MH Ready Patch vs Bondo is right for you.

KEY TAKEAWAYS

MH Ready Patch is a spackling and patching compound often used to fill dents and holes in drywall before painting. Bondo All-Purpose putty is a relatively more versatile repair and filler solution and can be applied to a variety of materials. Its relatively thicker consistency and hardening properties make it a heavier-duty solution compared to MH Ready Patch.

MH ready patch vs Bondo all-purpose-putty chart

What are the Key Ingredients of MH Ready Patch and Bondo?

MH Ready Patch (available here on Amazon) is a water-based patching and spackling solution that is often used to repair cracks, holes, and other flaws in wood, drywall, concrete, and metal surfaces. Among the major elements of MH Ready Patch are:

C13-14 isoparaffin: This is a kind of hydrocarbon solvent that is extensively used in cosmetic and personal care products, as well as industrial uses such as paint thinners and cleaning agents. In MH Ready Patch, C13-14 isoparaffin is utilized as a solvent to aid in dissolving the other components and make the patching compound easier to apply. It also helps the patching material dry faster.

Barium sulfate: Barium sulfate is a filler in MH Ready Patch to enhance the texture and consistency of the patching solution. It also adds weight to the substance, which can help it stick more securely to the mended surface.

Xylene: This chemical is an aromatic hydrocarbon solvent that is extensively used in the manufacture of paints, adhesives, and other industrial goods. Xylene is used as a solvent in MH Ready Patch to assist in dissolving the other chemicals and make the patching compound simpler to apply. It also speeds up the drying time of the patching compound.

Zinc sulfide: Zinc sulfide is a pigment often used in paints, plastics, and other industrial applications. This white mineral is used in MH Ready Patch to give the patching compound its white hue.

Kaolin clay: This white clay is extensively used as a filler and pigment in a variety of industrial and consumer applications. It’s used as a filler in MH Ready Patch to enhance the texture and consistency of the patching solution. It also adds strength and longevity to the patch, which helps it resist splitting and shrinking with time.

Bondo All Purpose Putty (available here on Amazon) is a two-part polyester filler that may be used to repair wood, metal, concrete, and fiberglass. After the putty has cured, it may be placed in the damaged area and sanded smooth. Bondo All Purpose Putty contains the following key ingredients:

Polyester resin: This synthetic resin is used to hold the putty together. It adheres well to a variety of surfaces and helps to prevent cracking and shrinking.

Talc: The white mineral acts as a filler in patching mixtures. It improves the texture and consistency of the putty while also providing a smooth finish.

Styrene: A volatile chemical substance that is typically used as a solvent in polyester resin. It aids in the dissolution of the resin and facilitates mixing with the other components.

Ethylene glycol: This alcohol is used in polyester resin as a crosslinking agent. It aids in the hardening of the putty once it has been prepared and applied to the surface.

Related: Wood Filler vs Epoxy: When to Use Each

When Should You Use MH Ready Patch and Bondo?

Both MH Ready Patch and Bondo are great materials for mending defects in a variety of surfaces, but they are intended for specific purposes. 

MH Ready Patch is a flexible, water-based patching and spackling material that may be used to repair a variety of surfaces such as wood, drywall, and concrete. Here are some situations where MH Ready Patch is the best solution:

Filling tiny cracks and holes in walls, ceilings, and other wood surfaces before painting: MH Ready Patch is an excellent spackling compound for filling small cracks and holes in walls, ceilings, and other wood surfaces (both indoors and outdoors). Once the compound has dried, it can be lightly sanded over to create a smooth surface to be primed, and then painted. 

Repairing damaged drywall: MH Ready Patch is an excellent solution for patching up whiles, dents, and gouges in drywall.

Repairing cracks in concrete: Although MH Ready Patch won’t mend two pieces of broken concrete together, it can certainly be used to fill in cracks in broken concrete. This can make the split concrete appear unified. 

Bondo All Purpose Putty, on the other hand, is a two-part polyester resin-based filler that can be used on a variety of surfaces, including wood, metal, concrete, and fiberglass. Bondo All Purpose Putty may be useful in the following situations:

Filling bigger cracks and holes: Compared to MH Ready Patch, Bondo All Purpose Putty holds its shape much better when dried, making it ideal for filling larger cracks and holes in wood, metal, and concrete surfaces. Many people find the toughness of the dried compound perfect for filling relatively more severe areas of damage in walls, or other surfaces. It can be applied in layers if needed to fill deep gouges and cracks.

Since Bondo is a putty that must be mixed with a hardener, and then applied quickly before it dries, Bondo is a hardy solution for fixing one imperfection at a time. Note that for fixing numerous dents and scratches in drywall at once before painting, MH Ready Patch is the better solution. MH Ready Patch doesn’t need to be mixed with a hardener and dries much more slowly, making it ideal for patching up numerous imperfections in drywall and other surfaces relatively quickly. 

Restoring damaged car bodies and boats: Since Bondo All Purpose Putty is designed to hold up in the elements, it can also restore dents, scratches, and other imperfections in car bodies and even boats.

Furniture: Bondo is often used to repair dents and gouges in wood furniture. Once dried it can be sanded down to be flush with flat wood furniture surfaces.

Note that you should only use Bondo on wood furniture if you plan on painting the furniture afterward. 

Related: Bondo vs Wood Filler: When to Use Each

MH Ready Patch Vs. Bondo: Performance characteristics 

MH Ready Patch

MH Ready Patch has a smooth and creamy texture that makes it simple to apply with a putty knife or trowel. It has a light gray hue that looks similar to drywall and can be painted over in 30 minutes or less.

One performance characteristic that sets MH Ready Patch apart from Bondo is it dries much slower. This makes it much easier to spread the solution around as you see fit before it completely solidifies. 

MH Ready Patch has a minimal odor and no hazardous components, making it suitable for use indoors without much airflow. Because MH Ready Patch is water-based, it is also simple to clean up with soap and water, eliminating the need for harsh solvents or other chemicals.

One of the most important properties of MH Ready Patch is its ability to stick strongly to a variety of surfaces, including drywall, plaster, wood, and painted surfaces. With the proper spreading technique, it leaves a smooth and even surface that may be painted or wallpapered over once dry.

MH Ready Patch is also very resistant to shrinking and cracking, guaranteeing that the restored surface stays smooth and level over time. 

Bondo All-Purpose Putty

Bondo has two components: the putty and the hardener. 

This putty has a thick, paste-like consistency and may be scooped out simply using a putty knife or equivalent instrument. After scooping the putty on a paper plate or another mixing surface, you must apply a dash of the hardener paste. Immediately after you would vigorously mix the components together, and then quickly apply the compound before it hardens. If you fail to apply and spread the solution quickly on the surface you’re treating, its texture will become crumbly and brittle. 

After just a few minutes, the compound will have fully hardened. From here, you can sand down the dried bondo until it’s flush with the surface you applied it to. 

Due to the benzoyl peroxide ingredient, this product has a unique chemical odor and it has a strong smell. That said, it’s important to use the product in a well-ventilated location.

How Much Does Each Cost?

The price of MH Ready Patch and Bondo varies according to container size, merchant, and location. However, in general, these products cost practically the same. For reference, one quart of MH Ready Patch and Bondo both cost $24.99 on Amazon.

Which is best for you?

Choosing between MH Ready Patch and Bondo All-Purpose Putty comes down to your specific project and preferences. 

MH Ready Patch is a fantastic spackling solution for filling in imperfections in drywall, plaster, wood, concrete, and metal surfaces. Due to its creamy consistency, and since it dries slowly, it’s the ideal solution for efficiently fixing dents holes, and scratches to prepare a large surface before painting.

Bondo on the other hand is a slightly heavier-duty solution suitable for more severe areas of damage. While MH Ready Patch is great for filling minor imperfections, Bondo is ideal for fixing deeper dents, gouges, and holes. Additionally, if you want to repair a surface prone to more wear and tear such as the body of your car, or furniture, Bondo is your best bet.

 

Sources:

https://ehslegacy.unr.edu/msdsfiles/25220.pdf

https://www.homedepot.com/p/Zinsser-32-oz-Ready-Patch-Spackling-and-Patching-Compound-04424/100398387

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