Sesame White Fire-Roasted Surface is a common type of granite stone whose surface is treated with high-temperature flame spraying, creating a distinctive rough texture. Below is a detailed introduction to it:

Feature

• Material and Texture: The stone is granite, featuring a grayish-white base with black speckles. After being treated with high-temperature flame spraying, the surface develops a uniform, rough-textured grain, resulting in an uneven, matte finish.

• Specification parameters: Common thicknesses include 1.8 cm, 2.5 cm, 3.0 cm, and 5.0 cm, among others. Standard finished product sizes are typically 30 cm × 30 cm, 30 cm × 60 cm, and 60 cm × 60 cm; custom-shaped sizes are also available upon request.

Processing technology

First, select sesame-white raw stone blocks that are free of cracks and exhibit minimal color variation. Cut the blocks to the desired dimensions and thickness. Then, use an acetylene or propane flame torch (at a temperature of approximately 1200–1500℃) to uniformly heat the stone surface, causing the quartz crystals to fracture and form coarse particles. After allowing the stone to cool naturally, rinse off the surface slag and debris using a high-pressure water jet. Finally, apply a penetrating protective agent.

Application scenarios

Thanks to its slip-resistant, wear-resistant, and highly weather-resistant properties, it is widely used for outdoor flooring applications such as plazas and sidewalks. It can also be employed in dry-hung curtain walls for building exteriors and in decorative stone wall cladding. Additionally, it is suitable for landscaping projects, including flower bed borders and pond shorelines.

Pros and cons

The advantages include excellent slip resistance, strong weather resistance, low processing costs, and a matte texture that can conceal minor scratches.

Key Points for Construction and Maintenance

When laying the tiles, ensure that the cement-sand mortar base is smooth and free of hollow spots. Leave a joint width of 3–5 mm, and it is recommended to use a flexible grout. For daily maintenance, you can periodically rinse the surface with a high-pressure water jet. For stubborn stains, use a neutral detergent together with a soft-bristled brush for cleaning. Reapply the protective coating every 2–3 years.