Decorating Preparation for London Victorian Homes: Achieving a Professional Finish

NEW PLASTER IS THE MOST COMMON CAUSE OF POOR DECORATING RESULTS ON LONDON RENOVATION PROJECTS. UNDERSTANDING THE DRYING AND SEALING PROCESS IS ESSENTIAL.

DRYING TIME: BRITISH GYPSUM MULTI-FINISH PLASTER (13MM BACKING + 3MM FINISH) MUST DRY BEFORE PAINTING. THE RULE OF THUMB IS: MINIMUM 2 WEEKS IN SUMMER / 4-6 WEEKS IN WINTER FOR THE FINAL COAT. THE PLASTER CHANGES COLOUR FROM DARK OCHRE/ORANGE (WET) TO PALE PINK-BEIGE (DRY). DO NOT RUSH — PAINTING OVER DAMP PLASTER CAUSES: PEELING; DARK PATCHES SHOWING THROUGH TOP COATS; MOULD IN EXTREME CASES. CHECK WITH A MOISTURE METER: PROTIMETER SURVEYMASTER OR PROTIMETER MINI — SURFACE READING BELOW 18% MC FOR STANDARD PAINTING; BELOW 12% MC FOR WALLPAPER.

MIST COAT (NEW PLASTER SEALER): BEFORE ANY TRADE EMULSION IS APPLIED TO NEW PLASTER, A MIST COAT IS ESSENTIAL. A MIST COAT IS A DILUTED EMULSION THAT PENETRATES THE PLASTER SURFACE AND BINDS IT — PREVENTING THE ABSORBENT PLASTER FROM DRAWING MOISTURE OUT OF SUBSEQUENT PAINT COATS AND CAUSING THEM TO DRY TOO FAST (WHICH LEADS TO POOR ADHESION AND A CHALKY SURFACE). STANDARD MIST COAT RECIPE: WHITE EMULSION (ANY MID-RANGE, E.G. DULUX TRADE VINYL MATT OR LEYLAND TRADE VINYL MATT) DILUTED 50:50 WITH WATER. APPLY GENEROUSLY WITH ROLLER — ONE FULL COAT. ALLOW TO DRY FULLY (MINIMUM 4-6 HOURS) BEFORE SUBSEQUENT COATS. PROPRIETARY ALTERNATIVE: TARMAC PVA (DILUTED 5:1 WATER TO PVA) — USED AS A PLASTER PRIMER/SEALER IN PLACE OF MIST COAT. LESS COMMON ON HIGH-SPEC RESIDENTIAL PROJECTS.

CRACKS AND SHRINKAGE AFTER FIRST PAINT: HAIRLINE CRACKS IN PLASTER ARE COMMON — PARTICULARLY AT JUNCTIONS BETWEEN PLASTER SKIM AND EXISTING SURFACES. AFTER THE MIST COAT REVEALS ALL CRACKS, FILL WITH: TOUPRET ENDUIT DE LISSAGE (FINE SURFACE FILLER, APPLIED WITH SPATULA AND SANDED FLUSH WHEN DRY) OR GYPROC JOINTITE (FOR SLIGHT JOINT MOVEMENT IN PLASTERBOARD). SECOND COAT OF EMULSION AFTER SPOT PRIMING FILLED AREAS.

WOODWORK PREPARATION IS WHERE MOST SPECIFICATION MISTAKES OCCUR ON LONDON RENOVATION PROJECTS. THE FOLLOWING APPLIES TO: SKIRTING BOARDS; ARCHITRAVES; DOOR FRAMES; WINDOW BOARDS; AND INTERNAL DOORS.

PRIMED MDF SKIRTING AND ARCHITRAVES (CHESHIRE MOULDINGS, RICHARD BURBIDGE): MOST NEW MDF SKIRTING IS SOLD AS "PRIMED" — BUT THE FACTORY PRIMER IS A BASIC PRIMER/SEALER, NOT A FULL GROUND COAT. CORRECT PREPARATION: 1. SAND LIGHTLY WITH 120-GRIT SANDPAPER TO FLATTEN ANY TRANSPORT MARKS OR HANDLING DAMAGE 2. FILL ALL NAIL HOLES AND GAPS WITH TOUPRET INTERIEUR (FINE FILLER, SANDED FLUSH) 3. CAULK AT TOP EDGE AGAINST WALL AND BOTTOM EDGE AT FLOOR WITH FLEXIBLE ACRYLIC CAULK (GEOCEL 2300 PAINTERS CAULK) — SMOOTH WITH WET FINGER OR SHAPING TOOL; WIPE EXCESS; ALLOW TO CURE (2-4 HOURS) BEFORE PAINTING 4. APPLY DULUX TRADE QUICK DRY UNDERCOAT (WATER-BASED) — 1-2 COATS; SAND BETWEEN COATS (150-GRIT) 5. APPLY DULUX TRADE SATINWOOD (WATER-BASED) — 2 COATS FOR FULL OPACITY

BARE HARDWOOD OR SOFTWOOD TIMBER: 1. SAND GRAIN DIRECTION — 80 GRIT, THEN 120 GRIT, THEN 180 GRIT FOR SMOOTH FINISH 2. KNOT TREATMENT (SOFTWOOD): APPLY RUSTINS KNOTTING SOLUTION (SHELLAC-BASED) OVER ALL KNOTS — PREVENTS RESIN BLEED THROUGH PAINT 3. PRIMER: DULUX TRADE WOOD PRIMER FOR OIL-BASED TOPCOAT OR ZINSSER BULLSEYE 123 (SHELLAC + WATER-BASED) FOR QUICK PRIME-AND-TOPCOAT SYSTEMS 4. UNDERCOAT + SATINWOOD/GLOSS AS ABOVE

EXISTING PAINTED WOODWORK (REFRESH/REPAINT): 1. WASH DOWN WITH SUGAR SOAP (BARTOLINE SUGAR SOAP POWDER, DILUTED) TO REMOVE GREASE, FINGERPRINTS, AND CONTAMINATION 2. SAND WITH 150-180 GRIT — KEY EXISTING SURFACE FOR ADHESION 3. FILL ANY CHIPS OR DENTS WITH TOUPRET EXTERIOR WOOD FILLER (FINE GRADE) OR INTERIOR FILLER 4. CAULK GAPS AS ABOVE 5. SPOT PRIME BARE AREAS WITH ZINSSER BULLSEYE 123 OR DULUX TRADE QUICK DRY UNDERCOAT 6. TWO COATS DULUX TRADE SATINWOOD

METAL RADIATORS AND PIPEWORK: SAND GENTLY (150-GRIT), APPLY HAMMERITE METAL PRIMER OR ZINSSER ALLPRIME MULTI-SURFACE PRIMER, THEN DULUX TRADE SATINWOOD OR SPECIALIST RADIATOR PAINT (HAMMERITE RADIATOR ENAMEL WHITE).

CHOOSING THE CORRECT PAINT SYSTEM IS AS IMPORTANT AS PREPARATION. THE FOLLOWING COVERS THE MOST COMMONLY USED PRODUCTS ON HIGH-SPECIFICATION LONDON RESIDENTIAL PROJECTS:

WALLS AND CEILINGS (EMULSION): DULUX TRADE DIAMOND MATT — THE INDUSTRY STANDARD FOR HIGH-SPECIFICATION LONDON RESIDENTIAL. SCRUBBABLE MATT FINISH; EXCELLENT OPACITY; COVERS IN 2 COATS OVER A MIST COAT. DURABILITY RATING OUTPERFORMS STANDARD VINYL MATT. AVAILABLE IN FULL COLOUR MIX RANGE. LEYLAND TRADE VINYL MATT — LOWER-COST ALTERNATIVE; GOOD COVERAGE; WIDELY USED ON STANDARD RESIDENTIAL PROJECTS. FARROW+BALL ESTATE EMULSION — PREMIUM CONSUMER PRODUCT; HIGH PIGMENT LOAD; DISTINCTIVE DEPTH OF COLOUR. EXPENSIVE; LESS DURABLE THAN DULUX TRADE DIAMOND MATT. USED WHERE SPECIFIC F+B COLOURS ARE SPECIFIED. LITTLE GREENE INTELLIGENT EMULSION — PERFORMANCE COMPARABLE TO DULUX TRADE DIAMOND; EXCELLENT MID-PREMIUM OPTION FOR SPECIFIED COLOUR SCHEMES.

COMMON SPECIFIED COLOURS FOR LONDON RENOVATION 2025-2026: - FARROW+BALL POINTING (2003): WARM OFF-WHITE; THE MOST POPULAR F+B COLOUR FOR LONDON RENOVATION PROJECTS - FARROW+BALL STRONG WHITE (2001): CLEAN NEUTRAL WHITE; COOLER TONE THAN POINTING; POPULAR FOR CEILINGS - FARROW+BALL CHARLESTON GRAY (243): WARM GREIGE; POPULAR FOR LIVING ROOMS AND HALLWAYS - LITTLE GREENE ATOMIC MUSHROOM (217): MID-TONE GREIGE; VERSATILE AND FASHIONABLE - LITTLE GREENE COOK\'S BLUE (88): KITCHEN AND UTILITY ROOMS; DUSKY MID-BLUE - DULUX HERITAGE: MUTED HERITAGE PALETTE — CHALK WHITE, LINEN WHITE, WARM TAUPE

CEILING WHITE: DULUX TRADE VINYL SOFT SHEEN (BRILLIANT WHITE) — SLIGHT SHEEN HELPS RESIST MOISTURE AND GIVES MORE DURABILITY THAN FLAT MATT IN BATHROOMS AND KITCHENS. FOR LIVING ROOMS: DULUX TRADE VINYL MATT BRILLIANT WHITE OR LEYLAND TRADE CEILING WHITE.

EXTERIOR MASONRY PAINT: DULUX TRADE WEATHERSHIELD SMOOTH MASONRY PAINT (FOR RENDERED SURFACES); SANDTEX ULTRA SMOOTH (MICROSEAL TECHNOLOGY); JOHNSTONE\'S TRADE STORMSHIELD MASONRY PAINT. THESE ARE ALL FLEXIBLE, MICRO-POROUS FORMULATIONS SUITABLE FOR LONDON RENDER AND STONE MASONRY. MINIMUM 2 COATS ON PREPARED SURFACE.

THE DECORATOR SHOULD BE THE LAST TRADE TO COMPLETE — BUT THIS RULE IS FREQUENTLY BROKEN ON LONDON PROJECTS, CAUSING EXPENSIVE REMEDIAL WORK. CORRECT SEQUENCING:

BEFORE DECORATING CAN START: - ALL PLUMBING AND M+E FIRST-FIX COMPLETE (NO MORE HOLES TO CUT) - ALL PLASTERING COMPLETE AND FULLY DRY (NO EXCEPTIONS) - ALL JOINERY FIXED (SKIRTING, ARCHITRAVES, WINDOW BOARDS, DOOR LINERS — BUT NOT INTERNAL DOORS, WHICH ARE HUNG AFTER PAINTING) - FLOOR PROTECTION IN PLACE (CORREX BOARD, NOT CHEAP CARDBOARD — MINIMUM 1.2MM POLYPROPYLENE) - DUST EXTRACTION IF ANY SANDING IS REQUIRED

SEQUENCE WITHIN DECORATING: 1. MIST COAT ALL NEW PLASTER WALLS AND CEILINGS 2. FILL CRACKS AND HOLES, CAULK JUNCTIONS 3. SAND WOODWORK (ALL SKIRTING, ARCHITRAVES, FRAMES) 4. UNDERCOAT WOODWORK (1-2 COATS, SAND BETWEEN) 5. FIRST FINISH COAT — CEILINGS FIRST, THEN WALLS, THEN WOODWORK 6. SECOND FINISH COAT — SAME ORDER 7. FINAL WOODWORK TOPCOAT (SATINWOOD OR GLOSS) 8. HANG INTERNAL DOORS (AFTER PAINTING DOOR FRAMES — BEFORE HANGING MINIMISES DAMAGE) 9. FINAL TOUCH-UPS

DUST AND CLEAN BETWEEN COATS: DUST FROM SANDING IS THE BIGGEST CAUSE OF SURFACE CONTAMINATION IN PAINT FINISHES. HOOVER THE ROOM AND WET-WIPE ALL SURFACES BEFORE APPLYING TOPCOATS. TACK CLOTHS (MIRKA MIRLON TACK CLOTH) ON WOODWORK IMMEDIATELY BEFORE PAINTING.

PROTECTION OF ADJACENT SURFACES: FROGTAPE DELICATE SURFACE (BLUE/YELLOW) FOR MASKING — FROG TAPE FORMS A SUPERIOR PAINT LINE VERSUS STANDARD MASKING TAPE. REMOVE BEFORE THE PAINT IS FULLY DRY (TYPICALLY 1-2 HOURS AFTER APPLICATION) TO PREVENT TEARING.