GOST 9109-81 PDF

Full title and description

GOST 9109-81 — "Грунтовки ФЛ-03К и ФЛ-03Ж. Технические условия" (Primers FL-03K and FL-03Zh — Technical specifications). The standard defines technical requirements, composition and application conditions for two phenol‑formaldehyde‑based primers commonly used for protection and priming of metal and wooden surfaces.

Abstract

This standard specifies the formulation, physical and performance requirements, testing and acceptance rules, storage and marking for primers designated FL-03K and FL-03Zh. It covers composition (suspensions of pigments and fillers in lacquer based on modified phenol‑formaldehyde resins), typical application areas, and limits for key properties such as film appearance, drying, adhesion and temperature stability.

General information

• Status: Active / действует.
• Publication date: Introduced 01 January 1982 (designation year 1981 — GOST 9109-81).
• Publisher: Межгосударственный стандарт (GOST system / interstate standard).
• ICS / categories: Paints and varnishes (classification OKS/ICS for lacquers and paints — 87.040 / related).
• Edition / version: Original designation 9109-81; reissued record noted (reissue 1997) with several amendments (1986, 1991, 1993).
• Number of pages: Approximately 12 pages (typical published text length).

Scope

Applies to primers FL-03K and FL-03Zh — ready‑formulated suspensions of pigments and fillers in lacquers based on synthetic phenol‑formaldehyde resins modified with vegetable oils and organic solvents. The standard covers intended uses (priming of ferrous and selected non‑ferrous metals, alloys and wooden surfaces), performance temperature range for cured films and general application/acceptance conditions.

Key topics and requirements

• Designation and composition: definition of FL-03K and FL-03Zh formulations (resin base, pigments, fillers, modifiers).
• Physical and performance properties: appearance, drying time, hardness, adhesion, film uniformity and temperature resistance.
• Testing methods and acceptance criteria for supplied batches.
• Packaging, marking, storage and transportation rules for primer products.
• Safety and handling notes typical for solvent‑borne phenol‑formaldehyde lacquer systems.

Typical use and users

Used by paint and coatings manufacturers, industrial maintenance departments, corrosion‑protection contractors and facilities that prime metal and wooden parts before finishing (automotive restoration, machinery, structural steelwork, general industrial painting). Also referenced by quality control and testing laboratories for acceptance of FL‑03 series primers.

Related standards

Replaces or updates earlier internal versions (listed as replacing ГОСТ 9109-76 in registry entries). It is referenced by other standards for accelerated climatic testing and paint system compatibility. A project to revise and replace ГОСТ 9109-81 has been publicly discussed (new draft to modernize safety, environmental and testing requirements).

Keywords

GOST 9109-81; FL-03K; FL-03Zh; primer; грунтовка; phenol-formaldehyde; lacquer primer; paints and varnishes; technical conditions; corrosion protection.

FAQ

Q: What is this standard?

A: GOST 9109-81 is a technical standard that defines specifications and requirements for primers FL-03K and FL-03Zh used in the coatings industry.

Q: What does it cover?

A: It covers composition, required physical and performance properties, testing and acceptance rules, packaging, marking, storage and basic safety/handling considerations for these solvent‑borne phenol‑formaldehyde primer systems.

Q: Who typically uses it?

A: Coatings manufacturers, industrial painting contractors, maintenance and repair shops, quality control laboratories and purchasers of FL-03 series primers refer to the standard for product acceptance and application guidance.

Q: Is it current or superseded?

A: As of the published registry entries, ГОСТ 9109-81 is listed as active (introduced 01.01.1982) and has recorded amendments; however, a revision project has been initiated to update requirements — users should verify the latest status before regulatory or procurement use.

Q: Is it part of a series?

A: It is part of the lacquers and paints family of standards within the GOST/EASC system and is cross‑referenced by other standards dealing with testing methods, climatic and durability trials for coatings.

Q: What are the key keywords?

A: Primer, FL-03K, FL-03Zh, грунтовка, phenol‑formaldehyde, primer specifications, paints and varnishes, corrosion protection, technical conditions.