石蔵商店 List of Products and Services

Utilizing the properties of aluminum with over 99% purity, we have developed a high-performance heat-insulating sheet that blocks up to 97% of radiant heat! We have obtained certification from the Ministry of Land, Infrastructure, Transport and Tourism as a "non-combustible material"! A special coating has been applied to suppress aging deterioration and achieve high reflectivity! Experience the top-class performance of our high-performance heat-insulating sheet! Strengths of Ishikura Shoten: 1. Since we handle product planning and development, we can manufacture heat-insulating sheets with specifications that meet various requests! 2. Our integrated system allows us to carry out everything from sheet manufacturing to installation in factories and warehouses, enabling us to keep the cost of heat-insulating sheet construction "low"! - For those who wish for more details, we can conduct a WEB meeting even from remote locations! → We will share an overview of the product and numerous construction achievements. "Simple estimate simulation" is also possible. - For presentations to your company and on-site surveys (estimates), we will implement perfect infection control measures during our visit. → We will conduct temperature checks and disinfection beforehand, and we will wear masks and gloves (and, if necessary, simple vinyl protective clothing). For product inquiries! Request for construction estimates! Contact us now!

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Developed a high-performance heat-insulating sheet that utilizes the properties of over 99% high-purity aluminum to block up to 97% of radiant heat! Obtained certification from the Ministry of Land, Infrastructure, Transport and Tourism as a "non-combustible material"! Special coating applied to suppress aging deterioration and achieve high reflectivity! Experience the truly top-class performance of this high-performance heat-insulating sheet! 【Features】 ■ Corrosion-resistant coating (strong against acids, alkalis, and electrical corrosion) ■ Condensation prevention ■ High heat insulation effect ■ Lightweight and ultra-thin yet high strength ■ Double-sided aluminum (one side with lines) ■ Reduces the perceived temperature in the workplace, serving as a "heat prevention and extreme heat countermeasure" ■ Industry-leading high-performance heat-insulating sheet! Specifications: Thickness 0.23mm × Width 1m × Length 50m Applications: Indoor roofs, attics, walls, exterior walls, machinery, etc. Ministerial certification number: NM4926

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We will introduce the characteristics of the "heat-insulating sheet." It is possible to achieve heat insulation easily (and with zero running costs). Since it reflects heat, it does not accumulate heat on the roof, preventing heat from entering indoors. 【Characteristics】 ■ Reflectivity 97% ・ Stops heat by reflecting it ■ Emissivity 3% ・ Reduces heat radiation *For more details, please refer to the PDF document or feel free to contact us.

• Other consumables
• Other safety and hygiene products

We would like to introduce our "Glass Heat Insulation Film." It prevents heat from entering through window glass and reduces uncomfortable heat. It cuts over 99% of ultraviolet rays, which are the cause of sunburn. Additionally, it makes air conditioning more effective, allowing for a reduction in cooling costs, which contributes to energy savings. We also offer a variety of glass films tailored to different applications, including "Shatterproof Film" and "Security Film." 【Features】 ■ Reduces sunburn ■ Insect-repellent effect ■ Safe performance that prevents glass from falling even if it breaks (JIS A 5759) ■ Transparency remains unchanged even after applying the film ■ Durability of approximately 10 to 15 years ■ Cuts external heat in summer and retains indoor heat in winter, leading to energy savings *For more details, please refer to the PDF document or feel free to contact us.

• Other safety and hygiene products

Our high-performance heat-insulating sheet utilizes the properties of over 99% pure aluminum and has been developed to block up to 97% of radiant heat! The high-performance heat-insulating sheet PRX-PED is highly effective for condensation prevention and is very effective for heat insulation measures in areas where condensation is a concern. 【Features】 ■ Corrosion-resistant coating (strong against acid, alkali, and electrical corrosion) ■ Condensation prevention ■ High heat insulation effect ■ Lightweight and ultra-thin yet high strength ■ Double-sided aluminum (one side with lines) ■ Reduces the perceived temperature in the workplace, serving as a "heat countermeasure and extreme heat countermeasure" ■ Industry-leading high-performance heat-insulating sheet! Specifications: Thickness 5mm × Width 1m × Length 50m Applications: Condensation prevention, under roofs, ceilings, attics, walls, refrigerators, etc.

• Other safety and hygiene products

Our high-performance thermal insulation sheet cuts radiant heat by up to 97%. The high-temperature, high-strength thermal insulation sheet PRX-HTR can be used in high-temperature environments up to 130°C. (Note: If the cut edges and small edges are bent towards the contact side, it can handle up to approximately 220°C.) It is suitable for use in industrial furnaces. Product inquiries! Request for construction estimates! Contact us now! 【Features】 ■ Reduction of energy input for machinery ■ Capable of withstanding contact temperatures up to 130°C (can handle up to 220°C depending on installation method) ■ High thermal insulation effect ■ Lightweight and ultra-thin yet high strength Specifications: Thickness 0.23mm × Width 1m × Length 30m Applications: Machinery, ducts, etc.

• Other safety and hygiene products

Our high-performance heat-insulating sheet cuts radiant heat by up to 97%. The outdoor PRX-UV features a special coating on one side that provides a matte finish and reflection suppression treatment. As a result, it does not cause any adverse effects from sunlight scattering in outdoor environments. When applied in high-temperature facilities, it prevents heat from escaping from the furnace walls, allowing for "reduction of input energy," and lowers the perceived temperature in the workspace, serving as a measure against heatstroke and heat stress. 【Features】 ■ Special coating (equivalent to 10 years of UV weather resistance) ■ High heat insulation effect ■ Lightweight and ultra-thin yet high strength ■ White smoke aluminum (with backline) Specifications: Thickness 0.23mm × Width 1m × Length 50m Applications: Outdoor roofs, outdoor walls, indoor roofs, indoor walls, machinery equipment, etc.

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If you are interested in the Prox Thermal Insulation Sheet, please experience its effectiveness at a model construction site! ★ Here’s an explanation of the process leading to installation. ＜Inquiry＞ 　Send your inquiry and request for a quote via the web. 　↓ ＜Explanation＞ 　We will explain the product during a visit or a web meeting and introduce case studies. 　↓ ＜Site Visit＞ 　If you wish, you can experience the effectiveness at a model construction site! 　↓ ＜On-Site Survey＞ 　We will conduct an on-site survey free of charge for the estimate. 　↓ ＜Submission of Estimate＞ 　↓ ＜Formal Order＞ 　↓ ＜Construction Overview Meeting＞ 　↓ ＜Construction Begins!＞ Please check the PDF for more information about the Prox Thermal Insulation Sheet. Also, feel free to contact us for a visit to experience the effectiveness at the construction site. Product inquiries! Request for construction estimates! Contact us now!

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"Cool Keeper" is a heat countermeasure product that maintains a refreshing coolness for an extended period. By alleviating heat, it ensures the safety of workers and contributes to increased productivity. In a temperature-controlled comparison test simulating extreme heat conditions (40°C and 60% humidity), the cooling effect of "Cool Keeper" lasted for approximately 4 hours! It has a proven track record across a wide range of industries, including food, construction, logistics, agriculture, steel, and maintenance. *For more details, please refer to the PDF document or feel free to contact us.*

• others

We make factories and warehouses comfortable! Introducing the new era hybrid "Eco Thermal Insulation Material," which combines heat shielding and insulation materials into one. It simultaneously blocks radiant heat, conductive heat, and convective heat, keeping indoor temperatures comfortable. Installation is easy; just lay it in attics or walls. *For more details, please refer to the PDF document or feel free to contact us.*

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Due to the recent abnormal weather, the summer heat has intensified compared to the past, and the working conditions for those in factories and warehouses have become extremely harsh. (The Ministry of Health, Labour and Welfare has announced that the number of heatstroke patients among those in the manufacturing and warehousing industries is increasing, following the construction industry.) Another hot summer is approaching this year. Are you fully prepared for heat measures for those working in factories and warehouses? "I've been thinking about various things, but I haven't implemented them yet." "We currently don't have the budget for air conditioning equipment," and so on... If your company is in such a situation, please feel free to contact us. We can offer suitable heat measures (energy-saving measures)! We look forward to your request for a quote. 【Features】 ■ We can handle everything from planning, development, and manufacturing of heat-shielding sheets to installation in factories and warehouses in a seamless manner. ■ Thanks to this system, we can keep the cost of heat-shielding sheet installation to a "low cost." ■ We can undertake construction at a uniform price nationwide, regardless of the Kyushu region. *For more details, please refer to the PDF document or feel free to contact us.

• Other services
• Other contract services

Here is an introduction to the differences between "insulation materials" and "heat shielding sheets." "Insulation materials" only slow down the speed of heat transfer, and the heat that is stored will eventually be radiated. "Heat shielding sheets," on the other hand, reflect radiant heat and do not store heat, so they do not radiate heat into the interior. As a result, in summer, they reflect (block) the hot heat from outside and keep the interior comfortable. [Differences] ■ Insulation Materials - Only slow down the speed of heat transfer - Stored heat will eventually be radiated ■ Heat Shielding Sheets - Reflect radiant heat and do not store heat - Do not radiate heat into the interior *For more details, please refer to the PDF document or feel free to contact us.

• Other consumables
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We would like to introduce the issues related to the general construction method of "heat-reflective coatings." There are problems such as uneven coatings due to the skill level of the workers, such as paint drips and thin film, and the need for repainting due to aging deterioration, such as UV degradation. However, "heat-reflective sheets" are applied as a sheet, eliminating unevenness and providing uniform effectiveness. Additionally, since they are installed inside the roof and are not exposed to wind and rain, they can be used semi-permanently. [Issues] ■ Uneven coatings due to the skill level of the workers (paint drips, thin film) ■ Repainting required due to aging deterioration (UV degradation occurs) *For more details, please refer to the PDF document or feel free to contact us.

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We would like to introduce a demonstration experiment comparing temperatures using thermography between two identical buildings: one without "heat-insulating sheets" and one with them installed. The roof temperature of the uninstalled building was approximately 53°C, while the roof temperature of the installed building was about 30°C. This resulted in a remarkable difference of 23°C. 【Monitoring Overview】 ■ Roof temperature of the uninstalled building: Approximately 53°C ■ Roof temperature of the installed building: Approximately 30°C *For more details, please refer to the PDF document or feel free to contact us.

• Other consumables
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We would like to introduce a demonstration experiment measuring indoor temperatures in two identical buildings, one with and one without "heat-insulating sheets" installed. A thermometer was placed about 30 cm under the roof at a location approximately 100 cm from the south wall (same conditions). Monitoring the temperature changes during the day recorded a difference of 10°C. If you would like to experience the effects, please feel free to contact us. We will guide you to a nearby model factory. 【Locations of Indoor Thermometers】 ■ No.1 & No.2 - Installed about 30 cm under the roof at a location approximately 100 cm from the south wall (same conditions) ■ No.3 & No.4 - Installed at about 150 cm above ground on the back wall (north wall) of factories and warehouses where heat tends to accumulate (same conditions) ■ Outdoor Temperature (No.5) - Installed at about 150 cm above ground outdoors, between the unrenovated and renovated buildings *For more details, please refer to the PDF document or feel free to contact us.

• Other consumables
• Other safety and hygiene products

We would like to introduce the installation results of the "Prox Thermal Insulation Sheet," which alleviates heat inside buildings by blocking heat from the sun and machinery with sheets. We have installation records at various factories, including Company Y, Company I, and Company S. By applying it to machinery, we block the radiant heat emitted from the equipment's surface, improving the working environment in the factory and warehouse. 【Installation Results】 ■ Company Y Factory (Installed in May 2019) ■ Company I Factory (Installed in June 2019) ■ Company S Factory (Installed in July 2019) ■ Company Y Factory (Installed in August 2019) *For more details, please refer to the PDF document or feel free to contact us.

• Other consumables
• Other safety and hygiene products