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White rectangular plastic jug with black cap and Ilford label, five litre liquid concentrate

Ilford

Ilford Multigrade Paper Developer 5 Litre

SKU CH-8TE1-ZH5DX

Liquid concentrate developer for resin-coated and fibre-based enlarging papers, diluted 1:9 and ready in one minute at 20 °C

  • Economical concentrate diluted 1+9 for flexible mixing
  • Rapid 1-minute development at 20°C for RC papers
  • Image visible in 10 seconds on RC Multigrade papers
  • Extended 6-minute development without contrast shift on FB papers
  • Long 24-month shelf life unopened, 6 months half-full

Photographic paper developer concentrate

Ilford Multigrade Paper Developer is a liquid concentrate formulated for black-and-white darkroom printing. It suits both resin-coated and fibre-based enlarging papers and is intended for photographers who process their own prints. The 5 litre bottle provides enough concentrate for many printing sessions.

Dilution and development times

Recommended dilution is 1 part developer with 9 parts water. With MULTIGRADE IV RC DELUXE and MULTIGRADE III RC RAPID papers the image appears after 10 seconds and development completes in 1 minute at 20 degrees C. For MULTIGRADE FB papers the image appears after 35 seconds with a development range of 1 to 3 minutes at the same temperature, extendable to 6 minutes without contrast change.

Mixing and shelf life

As a liquid concentrate it mixes quickly by measuring the required amount and adding water. Only prepare the volume needed for each session to keep the working solution fresh. Unopened bottles keep for approximately 24 months; once opened and half-full the usable life is about 6 months when capped tightly.

Highlights

  • Economical concentrate diluted 1+9 for flexible mixing
  • Rapid 1-minute development at 20°C for RC papers
  • Image visible in 10 seconds on RC Multigrade papers
  • Extended 6-minute development without contrast shift on FB papers
  • Long 24-month shelf life unopened, 6 months half-full

Specifications

BrandILFORD

Questions about this item

How long does development actually take once the concentrate is diluted and the paper is in the tray?

At 68 degrees F (20 degrees C) development completes in 1 minute for MULTIGRADE IV RC DELUXE and MULTIGRADE III RC RAPID papers, with the image appearing after 10 seconds.

What dilution ratio does the 1+9 recommendation cap for working strength?

The concentrate is designed to be mixed 1 part developer with 9 parts water, giving a working solution at that fixed ratio for each printing session.

What size bottle does the 5-litre concentrate arrive in and will it fit a standard darkroom shelf?

The product is supplied as a 5-litre liquid concentrate bottle; shelf fit depends on your darkroom spacing.

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