Find HS Code and trade information for sponge sandpaper block

Sponge Sandpaper Block

A sponge sandpaper block is an abrasive tool used for sanding and finishing a variety of surfaces. It consists of a porous sponge base bonded to sandpaper abrasive material.

Material:

• Sponge: Typically open-cell polyurethane foam, providing flexibility and cushioning. Density variations exist, influencing firmness and durability.
• Abrasive: Commonly aluminum oxide, silicon carbide, or garnet. Aluminum oxide is most common for general-purpose sanding. Silicon carbide is harder and used for harder materials like metal and glass. Garnet is softer, suitable for delicate work like wood finishing.
• Bonding Agent: Resin or adhesive secures the abrasive to the sponge.

Purpose:

• Surface Preparation: Removing paint, varnish, rust, and other coatings.
• Smoothing: Leveling uneven surfaces and refining finishes.
• Contouring: Shaping and rounding edges.
• Light Deburring: Removing small imperfections and sharp edges.

Function:

The sponge provides a flexible backing that conforms to irregular shapes and contours. The abrasive grit removes material through friction. The open-cell structure allows for dust removal, preventing clogging and maintaining cutting efficiency. The block shape provides a larger, more stable sanding surface compared to sandpaper alone.

Usage Scenarios:

• Woodworking: Sanding furniture, moldings, and other wood projects. Particularly useful for curved surfaces.
• Automotive: Preparing surfaces for painting, removing rust, and blending body filler.
• DIY and Home Improvement: General sanding tasks around the house, such as smoothing walls or refinishing small items.
• Crafts and Hobby: Shaping and finishing various materials like plastic, foam, and clay.
• Drywall: Smoothing joint compound and feathering edges.

Common Types:

• Grit: Available in a wide range of grits, from coarse (40-60) for aggressive material removal to fine (220-400+) for polishing and smoothing.
• Shape: Rectangular blocks are most common, but triangular and contoured shapes are also available for specific applications.
• Density: Higher density sponges are firmer and provide more aggressive sanding, while lower density sponges are softer and more flexible.
• Grade: Standard, premium, and wet/dry grades exist, influencing durability and performance. Wet/dry sandpaper can be used with water to reduce dust and create a finer finish.
• Size: Varying lengths and widths accommodate different project sizes and sanding needs.
• Combination Blocks: Some blocks feature multiple grit surfaces for sequential sanding.

Based on the material, use, and application scenarios, a sponge sandpaper block is a form of abrasive powder or grain on a base material, used for surface treatment such as polishing, grinding, and sanding.

The following HS codes are relevant based on the provided reference material:

• 6805301000: This HS code covers “Natural or artificial abrasive powder or grain, on a base of textile material, of paper, of paperboard or of other materials, whether or not cut to shape or sewn or otherwise made up: On a base of other materials: Articles wholly or partly coated with abrasives, in the form of sheets, strips, disks, belts, sleeves or similar forms”. The “on a base of other materials” portion could apply if the sponge is considered the base material. Chapter 68 relates to articles of stone, plaster, lime, cement, asbestos, mica or similar materials. Heading 6805 specifically covers abrasive products. Subheading 680530 covers abrasive products on bases of other materials.
• 6805305000: This HS code also covers “Natural or artificial abrasive powder or grain, on a base of textile material, of paper, of paperboard or of other materials, whether or not cut to shape or sewn or otherwise made up: On a base of other materials: Other”. This is a broader category within abrasive products on bases of other materials, and could apply if the specific composition of the block isn't covered by 6805301000. The tax rate is identical to 6805301000.
• 8467290035: This HS code covers “Tools for working in the hand, pneumatic, hydraulic or with self-contained electric or nonelectric motor, and parts thereof: With self-contained electric motor: Other Grinders, polishers and sanders: Other: Other”. If the sponge sandpaper block is integrated into a powered tool, this HS code may be applicable. Chapter 84 relates to nuclear reactors, boilers, machinery and mechanical appliances. Heading 8467 specifically covers tools for working in the hand.

Tax Rate Information:

• For HS codes 6805301000 and 6805305000, the base tariff is 0.0%, with an additional tariff of 25.0%. After April 2, 2025, the additional tariff will increase to 30.0%, resulting in a total tariff of 55.0%.
• For HS code 8467290035, the base tariff is 0.0%, with an additional tariff of 7.5%. After April 2, 2025, the additional tariff will increase to 30.0%, resulting in a total tariff of 37.5%.