Darkroom Developing Trays KAISER Lab Trays 30x40, plastic, red, 360×460×85 mm

KAISER Lab Trays 30x40 are plastic developing trays designed for handling photographic paper and sheets up to 30×40 cm. Finished in red, each tray measures 360×460×85 mm and is suitable for chemical processing, rinsing and temporary holding during darkroom work. The trays are made of shock-resistant, acid-proof plastic with a grooved bottom that improves chemical flow and simplifies removal of paper. A recessed pour spout accommodates a tray thermometer and facilitates controlled pouring of liquids.

Advantages

The shock-resistant plastic construction provides durability and resists cracking under regular darkroom use. Acid-proof material ensures long-term resistance to commonly used photographic chemicals. Heat resistance up to 80°C (176°F) allows safe use with warm solutions. The grooved bottom promotes even chemical distribution and helps lift paper easily, while stackable design supports organized storage and efficient workflow. The integrated pouring recess reduces spills and allows placement of a tray thermometer for accurate temperature control.

Suitable for

• Developing and fixing photographic paper and sheet film up to 30×40 cm
• Rinsing and washing prints or sheets after chemical processing
• Temporary storage of paper between processing steps
• General darkroom chemical handling and solution mixing

Key specifications

• Outer dimensions: 360×460×85 mm
• Material: shock-resistant, acid-proof plastic
• Color: red
• Heat resistance: up to 80° C (176° F)
• Grooved bottom for improved flow and paper handling
• Pouring recess suitable for tray thermometer
• Stackable design for organized storage

How to use

Place the tray on a stable, level surface in the darkroom and pour the required amount of developer, stop bath or fixer according to your process and chemical manufacturer instructions. Use the grooved bottom to slide photographic paper smoothly into and out of the solution. Insert a tray thermometer into the pouring recess to monitor solution temperature. After processing, pour out chemicals carefully using the recess to reduce spills, then rinse and clean the tray thoroughly with water and an appropriate neutralizing agent if needed. Stack trays when dry for compact storage.

Usage recommendations

Use appropriate personal protective equipment and follow chemical safety guidelines. Do not expose trays to open flame or temperatures above specified heat resistance. Rinse thoroughly after use to prevent chemical buildup and prolong the tray's service life.