SP5679 - SPRALAC Black Wet-on-Wet Primer 1L KO DRAFT

The SPRALAC SP5679 Black Universal Primer 1L is a high-solid two-component primer specially designed for preparing automotive bodywork surfaces. Versatile, it can be used as a sanding filler primer or as a non-sanding wet-on-wet primer, depending on the selected hardener and thinner. It offers good filling properties, even application, and a uniform finish before painting.

Technical specifications

• Brand: SPRALAC
• Reference: SP5679
• Manufacturer's designation: Universal Primer Filler Black
• Type: high-solid 2K two-component universal primer
• Color: black
• Volume: 1 litre
• Use: with or without sanding (wet-on-wet)
• Function: filling, leveling, and preparing substrates before painting
• Mixing ratio: varies depending on the hardener and application method
• Compatible hardeners: MS, HS, or HS420 systems recommended by SPRALAC
• Thinner: compatible SPRALAC thinner, depending on the selected cycle
• Application: paint spray gun
• Substrates: old paintwork in good condition, polyester fillers, and properly prepared automotive substrates, according to the technical data sheet
• Finish: uniform surface ready to receive a compatible paint system
• Use: professional automotive bodywork

Advantages

• Dual use: suitable for applications with sanding and wet-on-wet.
• Good filling properties: helps level surfaces and reduce minor irregularities.
• Even application: makes it easy to achieve a uniform primer coat.
• Quality finish: effectively prepares substrates before applying automotive paints.
• Versatility: suitable for localized repairs and complete panels.
• Black shade: particularly useful for preparing dark finish colors.
• Productivity: the wet-on-wet method eliminates the intermediate sanding step when the cycle allows.
• Modular system: the mixture can be adapted depending on the compatible hardeners.
• Available in several colors: also available in White SP5689 and Grey SP5699 in the SPRALAC range.

Recommended applications

• Preparing bodywork panels before painting.
• Localized repairs on automotive panels.
• Application over properly prepared old paintwork.
• Filling surfaces with fillers before final sanding.
• Wet-on-wet application on compatible substrates.
• Preparing complete bodywork panels.
• Leveling primers before applying compatible matt bases and finishes.
• Preparing surfaces intended to receive dark colors.

Application and advice

• Thoroughly clean and degrease surfaces before application.
• Use a compatible degreaser, especially the SPRALAC SP6499 Silicone Remover.
• Sand substrates according to SPRALAC recommendations and remove sanding dust.
• Thoroughly stir the primer before preparing the mixture.
• Select the hardener and thinner compatible with the chosen application method.
• Sanding version: prepare the mixture according to the SPRALAC SP5679 Sanding technical data sheet.
• Apply the required coats, allowing the recommended evaporation times.
• Allow to dry completely before final sanding.
• Wet-on-wet version: prepare the mixture according to the SPRALAC SP5679 Non-Sanding technical data sheet.
• Apply an even coat and allow the evaporation time before recoating.
• Do not apply a finish directly before the recommended recoating time.
• Adjust the spray gun settings, pressure, and nozzle to the selected cycle.
• To choose a different primer shade, discover the SPRALAC primers available on Color-Box.
• Follow the mixing ratios, pot life, and drying times indicated in the manufacturer's technical data sheet.
• Wear suitable personal protective equipment, especially appropriate respiratory protection.
• Product strictly reserved for professional use.

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