prEN 12608-3

Unplasticized poly(vinyl chloride) (PVC-U) profiles for the fabrication of windows and doors - Classification, requirements and test methods - Part 3: PVC-U profiles covered with paint.

This document specifies the classifications, requirements and test methods for unplasticized poly(vinyl chloride) (PVC-U) profiles covered with paint designed for external uses which are intended to be used for the fabrication of windows and doors.
NOTE 1 The terms lacquer, varnish and coating are used as synonyms for paint.
NOTE 2 For editorial reasons in this document the term "window" is used for window/door.
NOTE 3 For the purpose of production control, test methods other than those specified in this document can be used.

Profile aus weichmacherfreiem Polyvinylchlorid (PVC-U) zur Herstellung von Fenstern und Türen - Klassifizierung, Anforderungen und Prüfverfahren - Teil3: PVC-U-Profile mit Lackierung

Diese Europäische Norm legt die Klassifizierungen, Anforderungen an und Prüfverfahren für Profile aus weich
macherfreiem Polyvinylchlorid (PVC-U) mit Lackierung zur Herstellung von Fenstern und Türen fest.
ANMERKUNG1 Die Begriffe Lack, Anstrich und Beschichtung werden als Synonyme für Lackierung verwendet.
ANMERKUNG2 Aus redaktionellen Gründen wird in diesem Dokument die Benennung "Fenster" für Fenster/Tür ange
wendet.
ANMERKUNG3 Für die Produktionskontrolle können andere Prüfverfahren als die in diesem Dokument festgelegten verwendet werden.

Profilés de poly(chlorure de vinyle) non plastifié (PVC‐U) pour la fabrication des fenêtres et des portes - Classification, exigences et méthodes d’essai - Partie 3 : Profilés en PVC‐U avec un revêtement laqué

Le présent document spécifie les classifications, les exigences et les méthodes d’essai des profilés de
poly(chlorure de vinyle) non plastifié (PVC-U) avec un revêtement laqué conçus pour un usage extérieur,
qui sont destinés à être utilisés pour la fabrication de fenêtres et de portes.
NOTE 1 Les termes vernis et peinture sont utilisés comme synonymes de laque.
NOTE 2 Pour des raisons éditoriales, dans ce document le terme « fenêtre » est utilisé pour « fenêtre/porte ».
NOTE 3 Pour les besoins du contrôle de la production, des méthodes d’essai autres que celles spécifiées dans le
présent document peuvent être utilisées.

Profili iz nemehčanega polivinilklorida (PVC-U) za izdelavo oken in vrat - Razvrščanje, zahteve in preskusne metode - 3. del: Profili PVC-U, prevlečeni z barvo

General Information

• Status: Not Published
• Publication Date: 10-Dec-2026
• ICS: 83.140.99 - Other rubber and plastics products
• ICS: 91.060.50 - Doors and windows
• Technical Committee: CEN/TC 249 - Plastics
• Drafting Committee: CEN/TC 249/WG 21 - Profiles for windows and doors
• Current Stage: 4060 - Closure of enquiry - Enquiry
• Start Date: 16-Oct-2025
• Due Date: 17-Oct-2025
• Completion Date: 16-Oct-2025
• Ref Project: oSIST prEN 12608-3:2025 - Unplasticized poly(vinyl chloride) (PVC-U) profiles for the fabrication of windows and doors - Classification, requirements and test methods - Part 3: PVC-U profiles covered with paint.

Overview

prEN 12608-3:2025 is a forthcoming European standard developed by CEN/TC 249 that focuses on unplasticized poly(vinyl chloride) (PVC-U) profiles covered with paint. These profiles are specifically designed for the fabrication of external windows and doors. This part 3 of the EN 12608 series establishes classification criteria, technical requirements, and test methods for PVC-U profiles coated with paint, ensuring durability, performance, and aesthetic quality in construction applications.

The standard addresses relevant properties such as impact resistance, weathering durability, paint adhesion, color stability, and physical dimensions of the profiles. It supports manufacturers in producing high-quality painted PVC-U window and door profiles compliant with harmonized European norms.

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Key Topics

• Scope and Terms: Defines "paint" as lacquers, varnishes, or coatings applied to base PVC-U profiles intended for external use in window and door fabrication.

• Classification:

  • Profiles are classified by wall thickness, impact resistance, and resistance to artificial weathering.
  • Paints are classified based on their resistance to artificial weathering exposures (classes M8 and S12).

• Technical Requirements:

  • Base Profiles: Must conform to EN 12608-1 or meet equivalent material, appearance, dimensional, and mechanical criteria.
  • Paint: Must be suitable for exterior use, designed for PVC-U substrates, and demonstrate resistance to UV radiation and weathering.
  • Painted Profiles: Evaluated for appearance, color consistency, straightness deviations, adhesion (cross-cut test), layer thickness, and weld strength.

• Test Methods:

  • Assessment includes visual inspections, colorimetric measurements (CIE DE2000 formula), and artificial weathering tests using xenon-arc lamps.
  • Resistance to impact and heat reversion tests ensure mechanical performance.
  • Solar direct reflectance is measured to comply with thermal management recommendations.

• Traceability:

  • The standard mandates proper documentation and traceability of materials, coatings, and test results for quality assurance and compliance auditing.

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Applications

Standard prEN 12608-3:2025 is essential for manufacturers, suppliers, architects, and construction professionals involved with PVC-U windows and doors, particularly those with painted finishes. Key practical applications include:

• Manufacturing Guidance: Ensures paint systems applied on PVC-U profiles meet stringent durability and aesthetic standards for outdoor exposure.
• Quality Control: Establishes test regimes to verify color stability and adhesion, preventing premature failure or discoloration in external environments.
• Product Certification: Supports compliance with building codes mandating UV resistance and weather durability of window and door components.
• Design Optimization: Helps in selecting appropriate paint formulations considering solar reflectance and weathering classifications to enhance energy efficiency and longevity.
• Supply Chain Standardization: Facilitates consistent product quality across different suppliers by harmonizing base profile and paint material requirements.

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Related Standards

prEN 12608-3 complements other parts of the EN 12608 series and associated standards critical for PVC-U window and door manufacturing:

• prEN 12608-1:2025 - Classification, requirements and test methods for non-covered PVC-U profiles.
• prEN 12608-2: PVC-U profiles with laminated foils bonded with adhesives - Alternative surface treatments.
• prEN 12608-4: PVC-U profiles with thermo-laminated foils - Related to profiles with laminated coatings.
• EN 17508 - Terminology for PVC-based window and door materials.
• EN ISO 4892-2 - Methods for exposure to laboratory light sources to simulate weathering (xenon-arc lamps).
• EN ISO 2409 - Paints and varnishes cross-cut adhesion test.
• EN 513 - Determination of resistance to artificial weathering for PVC profiles.
• EN 410 - Measurement of luminous and solar characteristics, relevant to solar reflectance testing.

Adherence to these interconnected standards ensures comprehensive evaluation and certification of painted PVC-U window and door profiles for commercial and residential construction markets.

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By following prEN 12608-3:2025, industry stakeholders can optimize the performance, durability, and visual appeal of paint-covered PVC-U profiles-key components in modern, sustainable façade solutions.

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2025
Profili iz nemehčanega polivinilklorida (PVC-U) za izdelavo oken in vrat -
Razvrščanje, zahteve in preskusne metode - 3. del: Profili PVC-U, prevlečeni z
barvo
Unplasticized poly(vinyl chloride) (PVC-U) profiles for the fabrication of windows and
doors - Classification, requirements and test methods - Part 3: PVC-U profiles covered
with paint.
Profile aus weichmacherfreiem Polyvinylchlorid (PVC-U) zur Herstellung von Fenstern
und Türen - Klassifizierung, Anforderungen und Prüfverfahren - Teil3: PVC-U-Profile mit
Lackierung
Profilés de poly(chlorure de vinyle) non plastifié (PVC‐U) pour la fabrication des
fenêtres et des portes - Classification, exigences et méthodes d’essai - Partie 3 : Profilés
en PVC‐U avec un revêtement laqué
Ta slovenski standard je istoveten z: prEN 12608-3
ICS:
83.140.99 Drugi izdelki iz gume in Other rubber and plastics
polimernih materialov products
91.060.50 Vrata in okna Doors and windows
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2025
ICS 83.140.99; 91.060.50
English Version
Unplasticized poly(vinyl chloride) (PVC-U) profiles for the
fabrication of windows and doors - Classification,
requirements and test methods - Part 3: PVC-U profiles
covered with paint.
Profilés de poly(chlorure de vinyle) non plastifié (PVC- Profile aus weichmacherfreiem Polyvinylchlorid (PVC-
U) pour la fabrication des fenêtres et des portes - U) zur Herstellung von Fenstern und Türen -
Classification, exigences et méthodes d'essai - Partie 3 : Klassifizierung, Anforderungen und Prüfverfahren -
Profilés en PVC-U avec un revêtement laqué Teil3: PVC-U-Profile mit Lackierung
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 249.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12608-3:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Classifications . 5
4.1 General. 5
4.2 Classification of main base profiles according to the wall thickness of the external walls 5
4.3 Classification of main base profiles according to the resistance to impact by falling mass5
4.4 Classification of base profile materials according to the resistance to artificial weathering
............................................................................................................................................................................. 5
4.5 Classification of paints according to the resistance to artificial weathering . 5
5 Requirements for base profiles . 6
5.1 Base profiles in conformance with EN 12608-1 . 6
5.2 Other base profiles . 6
5.2.1 Material . 6
5.2.2 Appearance . 6
5.2.3 Dimensions and tolerances of base profiles . 6
5.2.4 Linear weight of the base profiles . 6
5.2.5 Heat reversion . 6
5.2.6 Resistance to impact by falling mass of the base profiles . 7
6 Requirements for paints . 7
6.1 General. 7
6.2 Resistance to artificial weathering . 7
6.3 Solar direct reflectance . 8
7 Requirements for painted profiles . 8
7.1 General. 8
7.2 Appearance . 8
7.3 Colour . 8
7.4 Deviation from straightness of the painted main profiles . 8
7.5 Resistance to cross cut . 9
7.6 Layer thickness . 9
7.7 Strength of welded corners and T-joints of painted main profiles . 9
7.8 Resistance to artificial weathering . 9
8 Test methods . 10
8.1 Visual inspection . 10
8.2 Determination of colorimetric coordinates . 10
9 Traceability . 10
Annex A (normative) Determination of the reflection behaviour of paints by spectral analysis11
European foreword
This document (prEN 12608-3:2025) has been prepared by Technical Committee CEN/TC 249 “Plastics”,
the secretariat of which is held by SIS.
This document is currently submitted to the CEN Enquiry.
EN 12608, Unplasticized poly(vinyl chloride) (PVC-U) profiles for the fabrication of windows and
doors — Classification, requirements and test methods, is currently composed with the following parts:
— Part 1: Non-covered PVC-U profiles
— Part 2: PVC-U profiles with laminated foils bonded with adhesives
— Part 3: PVC-U profiles covered with paint
— Part 4: PVC-U profiles with thermo-laminated foils
— Part 5: PVC-U profiles with coextruded coloured top-layer (in preparation)
1 Scope
This document specifies the classifications, requirements and test methods for unplasticized poly(vinyl
chloride) (PVC-U) profiles covered with paint designed for external uses which are intended to be used
for the fabrication of windows and doors.
NOTE 1 The terms lacquer, varnish and coating are used as synonyms for paint.
NOTE 2 For editorial reasons in this document the term “window” is used for window/door.
NOTE 3 For the purpose of production control, test methods other than those specified in this document can be
used.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 410, Glass in building — Determination of luminous and solar characteristics of glazing
EN 513, Plastics — Poly(vinylchloride) (PVC) based profiles — Determination of the resistance to artificial
weathering
EN 514, Plastics — Poly(vinyl chloride) (PVC) based profiles — Determination of the strength of welded
corners and T-joints
prEN 12608-1:2025, Unplasticized poly(vinyl chloride) (PVC-U) profiles for the fabrication of windows and
doors — Classification, requirements and test methods — Part 1: Non-covered PVC-U profiles
EN 17508, Plastics — Unplasticized poly(vinyl chloride) (PVC-U) profiles for the fabrication of windows and
doors — Terminology of PVC based materials
EN 20105-A02, Textiles — Tests for colour fastness — Part A02: Grey scale for assessing change in colour
(ISO 105-A02)
EN ISO 179-1, Plastics — Determination of Charpy impact properties — Part 1: Non-instrumented impact
test (ISO 179-1)
EN ISO 2409, Paints and varnishes — Cross-cut test (ISO 2409)
EN ISO 4892-2:2013, Plastics — Methods of exposure to laboratory light sources — Part 2: Xenon-arc
lamps (ISO 4892-2:2013)
EN ISO 16474-1, Paints and varnishes — Methods of exposure to laboratory light sources — Part 1: General
guidance
EN ISO/CIE 11664-4, Colorimetry — Part 4: CIE 1976 L*a*b* colour space (ISO/CIE 11664-4)
EN ISO/CIE 11664-6, Colorimetry — Part 6: CIEDE2000 colour-difference formula (ISO/CIE 11664-6)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 17508 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/
— IEC Electropedia: available at https://www.electropedia.org/
3.1
base profile
profile without covering paint intended for painting
3.2
painted profile
profile covered with paint
3.3
paint
one or several layer(s) of lacquer (e.g. acrylic or polyurethane resin) or varnish (clear coating material)
that cover(s) a base profile
4 Classifications
4.1 General
The selection of appropriate classes necessary to fulfil national requirements may be given in the national
foreword of this document.
4.2 Classification of main base profiles according to the wall thickness of the external
walls
For the wall thickness of the external walls, the main base profiles shall be classified according to
prEN 12608-1:2025, 4.5.
4.3 Classification of main base profiles according to the resistance to impact by falling
mass
For the resistance to impact by falling mass, the main base profiles shall be classified according to
prEN 12608-1:2025, 4.4.
4.4 Classification of base profile materials according to the resistance to artificial
weathering
For the resistance to artificial weathering, the base profile materials shall be classified according to
prEN 12608-1:2025, 4.3.
4.5 Classification of paints according to the resistance to artificial weathering
The resistance to artificial weathering of paints shall be classified according to Table 1 after testing
according to 6.2.
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