PAINT

Garage Floors:  We get asked A LOT about painting garage floors.  As good information as we've run up on is to be found at: http://www.findarticles.com/cf_fmhymn/m1080/n3_v48/20355000/p1/article.jhtml
Fact is, if you're anything like us, Family Handyman from which the foregoing cometh will be of use to you as will The Journal of Light Construction.

CAUTION: LEAD IN PAINT IS VERY DANGEROUS. PAINT MANUFACTURED BEFORE 1977 MAY CONTAIN LEAD. PAINT MANUFACTURED BEFORE 1950 ALMOST DEFINITELY CONTAINS LEAD.  KNOW WHAT YOU’RE FOOLING WITH BEFORE YOU STRIP PAINT!!!

  • THE KEY TO THE DURABILITY OF ANY PAINT JOB IS IN THE PREPARATION.
  • IT SHOULD TAKE AT LEAST TWICE AS LONG TO GET READY AS IT TAKES TO PAINT.
  • EXTERIOR OR INTERIOR THE SURFACE MUST BE STABLE, CLEAN, PROVIDE A "TOOTH" TO HOLD THE PAINT, AND THE PAINT MUST BE APPLIED IN ACCORDANCE WITH THE MANUFACTURER’S SPECIFICATIONS.

VENTILATION- MOISTURE PROBLEMS ARE THE PRIMARY CAUSE OF PAINT FAILURE. CONDENSATION THAT WORKS ITS WAY FROM THE INSIDE OF THE HOUSE THROUGH THE SIDING LIFTS PAINT AS IT EVAPORATES THROUGH TREMENDOUS HYDROSTATIC PRESSURE. TRY TO RESOLVE HUMIDITY PROBLEMS INDOORS, CLOSE TOILET LIDS, HAVE VENTILATING FANS IN BATH ROOMS, HAVE A VENTILATING FAN OVER THE STOVE, AND RUN AIR CONDITIONERS OR ROOM DEHUMIDIFIERS. RESOLVE MOISTURE PROBLEMS IN BASEMENT OR CRAWL SPACE. INSTALL SMALL SCREEN VENTS IN SIDING TO HELP MOISTURE ESCAPE IN AREAS WHERE PAINT PEALS

CAUTION:
  NEVER CAULK THE LAPS ON SIDING!!!

FINALLY IT IS EXTREMELY HELPFUL TO INSURE ATTICS AND VAULTED CEILINGS ARE ADEQUATELY VENTILATED. 

VENTILATION OF ATTIC:

- THERE SHOULD BE AT LEAST 1 SQ. FT. OF UNRESTRICTED ATTIC VENTILATION FOR EVERY 150 SQ. FT. OF CEILING AREA IF THERE IS NO VAPOR BARRIER.

- THERE SHOULD BE AT LEAST 1 SQ. FT. OF NET FREE VENTILATION AREA (NFVA) FOR EVERY 300 SQ. FT. OF CEILING AREA IF THERE IS A VAPOR BARRIER.

BRENDA AT LOMANCO (800) 643-5596 CONFIRMS THE FOLLOWING:

1. WITH A STATIC SYSTEM (EXAMPLE - SOFFIT / CORNICE VENTS AND CONTINUOUS RIDGE VENT) THE NFVA SHOULD BE DIVIDED EQUALLY BETWEEN MAKE-UP AND EXHAUST AIR.

2. 80 SQ. INCHES OF NFVA / 100 CFM OF POWER VENTILATION IS A GENEROUS THUMB RULE FOR MAKE-UP AIR PROVISION WITH A POWER EXHAUST UNIT. ALL POWER VENTILATOR MANUFACTURER’S SPECIFY HOW MUCH NFVA IS REQUIRED WITH THEIR UNITS AND THIS DEPENDS ON THE SIZE OF THE UNIT.

STARTER VENT - PROVIDES MEANS FOR "MAKE-UP" AIR FOR ATTIC VENTILATION WHEN NO EAVE & SOFFIT ARE AVAILABLE. LOMANCO - (800) 643-5596.

COMMON PAINT PROBLEMS:

BLISTERING AND PEELING PAINT 

IF THIS CONDITION RESULTS IN THE EXPOSURE OF BARE WOOD, IT IS ALWAYS A RESULT OF MOISTURE PROBLEMS. IN ADDITION TO THE MEASURES OUTLINED ABOVE, A VAPOR BARRIER INSTALLED BETWEEN THE INTERIOR WALL AND THE SIDING CAN BE EFFECTIVE BUT WHO THE HECK IS GOING TO REMOVE SIDING TO DO THIS I’D LIKE TO KNOW.

PEELING PAINT 

CAN ALSO RESULT FROM A SURFACE THAT IS TOO HARD, SMOOTH, GLOSSY OR DIRTY. THE DIFFERENCE BETWEEN THIS CONDITION AND ONE RESULTING FROM MOISTURE PROBLEMS IS THAT THIS PROBLEM CAUSES PAINT TO PEEL DOWN ONLY TO THE OFFENDING LAYER WHILE MOISTURE PROBLEMS CAUSE PAINT TO PEEL DOWN TO BARE WOOD. CURE – SAND WITH 100 GRIT PAPER TO CLEAN AND ROUGHEN.

CONSIDER USING EMULSIBOND IN PAINT TO IMPROVE ADHESION IN ADDITION TO PREPPING WITH A FLAT OIL PRIMER.

ALLIGATORING

 IS USUALLY CAUSED BY THE BUILDUP OF TOO MANY LAYERS OF PAINT. THE ONLY REMEDY IS TO STRIP OFF ALL THE OLD LAYERS OF PAINT AND START OVER WITH 100 GRIT SANDING, APPLICATION OF AN OIL BASE PRIMER THEN USE OF EMULSIBOND IN THE PAINT.

STAINING OR POPPING PAINT DUE TO RUSTY NAIL HEADS 

IF POSSIBLE, REMOVE OFFENDING NAILS AND REPLACE WITH ALUMINUM OR GALVANIZED NAILS. OTHERWISE LIGHTLY SAND NAIL HEADS, COUNTERSINK, PRIME, CAULK THEN REPRIME AND PAINT.

RESIN BLEED THROUGH 

RESIN FROM KNOTS CAN STAIN PAINT. USE TURPENTINE SOAKED RAG TO WASH OFF AS MUCH RESIN AS POSSIBLE. COAT KNOT WITH A SPECIAL SEALER MADE FOR THAT PURPOSE. THEN PRIME AND REPAINT.

CLEANING

AS OFTEN AS NOT, PAINT FAILURES ARE DUE TO UNSATISFACTORY CLEANING. YOUR CLEANING SOLUTION SHOULD BE 2/3 CUP TSP (TRISODIUM PHOSPHATE) ... YOU MIGHT WANT TO USE TSP WITHOUT THE PHOSPHATE, 1/3 CUP DETERGENT LIKE "TIDE", 1 QUART OF CLOROX AND 3 QUARTS OF WARM WATER.

EXTERIOR

WET THE SURFACE TO BE PAINTED WITH A HOSE AND WATER ALL SHRUBS THOROUGHLY. SPRAY THE CLEANING SOLUTION YOU’VE MIXED UP ON HOUSE WITH A GARDEN SPRAYER AND LET LIQUID SIT SO SURFACTANTS CAN LIFT OFF DIRT AND KILL MILDEW BUT DO NOT LET SOLUTION DRY!!! SCRUB LIGHTLY WITH A LONG HANDLED BRUSH THEN SPRAY CLEAN WITH A WATER HOSE. CAUTION: BE SURE CLEANED SIDING IS THOROUGHLY DRY BEFORE PRIMING / PAINTING.

INTERIOR: CLEAN INTERIOR SURFACES AS ABOVE BUT DON’T USE A GARDEN HOSE AND DON’T WATER THE SHRUBS THOROUGHLY.

CAUTION: PRESSURE WASHERS ARE A QUICK AND DIRTY WAY TO STRIP FLAKING PAINT, BUT THEY CAN CAUSE TERRIFIC DAMAGE IN THE HANDS OF THE UNSKILLED OR INATTENTIVE.  THEY CAN ALSO DISLODGE WOOD FILLER AND CAULKING AND CAN FORCE WATER INTO THE WOOD CAUSING ROT AND PAINT FAILURE.

STABILIZE

TO PROVIDE A STABLE SURFACE THAT WILL HOLD PAINT REQUIRES A COMBINATION OF STRIPPING, SCRAPING, SANDING, REPAIRING NICKS OR GOUGES WITH SOME SORT OF SPACKLING FILLER, THE APPLICATION OF CAULK IN GAPS & GLAZING AROUND GLASS PANES, I.E., GETTING THE SURFACES TO BE PAINTED IN GOOD, SOLID CONDITION. CAUTION: USE ONLY AN EXTERIOR SPACKLING COMPOUND OR PAINTER’S PUTTY FOR OUTDOOR APPLICATIONS … INDOOR SPACKLING WON’T HOLD UP.

ALLEGED GOOD STRIPPERS-

  • CITRISTRIP FOR PAINT & VARNISH IS SAFE & EFFECTIVE. STAYS WET & EFFECTIVE UP TO 24 HOURS SO WILL STRIP MULTIPLE LAYERS. (810) 340-0400
  • "PEEL-AWAY" WAS ON "THIS OLD HOUSE" AND IS SUPPOSED TO TURN LAYERS OF PAINT INTO SINGLE SHEET THAT LIFTS OFF INTACT. AVAILABLE FROM DIAMOND CHEMICALS, DEPT. PWN-01, 1501 BROADWAY, N.Y., N.Y. 10036
  • CLEAN - PRIMER AND PAINT CAN’T ADHERE TO A DIRTY SURFACE. SEE ABOVE UNDER "CLEANING" FOR WHAT TO DO.
  • "TOOTH" - DON’T EVEN THINK ABOUT APPLYING PAINT UNTIL YOU’VE PRIMED ANY NEW WOOD, WOOD THAT WAS SCRAPED / SANDED, AND ALL AREAS FILLED WITH SURFACING COMPOUND.

DO NOT USE REGULAR PAINT FOR PRIMER, RATHER USE A PRIMER AS SPECIFIED BY THE PAINT MANUFACTURER.

WHEN IN DOUBT, PRIME.

NOTE: A PRIMER TINTED TO THE TOP COAT COLOR WILL ASSURE MORE EVEN COLOR COVERAGE OF THE FINAL COAT OF PAINT.

APPLICATION

FOLLOW THE MANUFACTURER’S SPECIFICATIONS WITH RESPECT TO TEMPERATURE, TIME BETWEEN THE PRIME AND FINISH COAT (S) APPLICATIONS, HUMIDITY, AND SO FORTH.

BRUSHES: 

BUY GOOD BRUSHES. A 2-1/2" ANGLED BRUSH FOR SASH AND TRIM AND A 4" BRUSH FOR WIDE TRIM AND FLAT WORK. LATEX - NYLON OR OTHER SYNTHETIC BRISTLE BRUSH.  OIL - NATURAL CHINA BRISTLE BRUSH.

NOTE: GET THE BEST BRUSH YOU CAN AFFORD AND TAKE CARE OF IT. A GOOD BRUSH SHOULD LAST FOREVER!!!

NOTE: "BACK BRUSHING" APPLIES PAINT WITH A ROLLER TO BE BRUSHED OUT BEFORE IT DRIES. THE ROLLER APPLIES PAINT IN A CONSISTENTLY THICK COAT AND SAVES THE TIME OF CONSTANTLY DIPPING THE BRUSH. THE BRUSH WORKS THE PAINT INTO THE SURFACE AND ELIMINATES THE ROUGH, TEXTURED LOOK YOU GET WITH THE ROLLER.

NOTE: COFFEE CAN W’ PLASTIC LID MAKES GREAT CONTAINER FOR STORING OVERNIGHT OR SOAKING PAINT BRUSHES. CUT "X" IN CENTER OF LID, PUSH BRUSH HANDLE UP THROUGH "X" SO BRISTLES WILL BE IN WATER / SOLVENT. LID KEEPS LIQUID FROM EVAPORATING AND HOLD BRISTLES SUSPENDED ABOVE CAN BOTTOM.

LATEX PAINT SPLATTER REMOVER - GOOF OFF (800) 253-3957. ALSO REMOVES STICKER RESIDUE, GLUE RESIDUE, DISSOLVES CHEWING GUM & CANDLEWAX, REMOVES PEN / MARKERS / CRAYONS, REMOVES OIL / GREASE STAINS, REMOVES SCUFF MARKS ON TILE & LINOLEUM.

STUCCO PAINT: TOP-QUALITY ACRYLIC LATEX PAINT - AT LEAST TWO COATS TO PROVIDE THICKER FILM FOR MORE RESILIENCE.

ELASTOMERIC PAINT IS THE ULTIMATE FINISH. ELASTOMERIC GOES ON THICK FOR SUPERIOR DURABILITY & ELASTICITY. COAT OF ELASTOMERIC PAINT MAY BE 10 TIMES THICKER THAN ORDINARY ACRYLIC LATEX LAYER (LIKE TRYING TO COVER THE JOB WITH REAL THICK GRAVY. SO MUCH MORE IS USED, ELASTOMERIC JOB WILL COST 3 TIMES AS MUCH AS A COAT OF GOOD-QUALITY ACRYLIC LATEX.

METAL PAINT: FOR THE EASE AND CONVENIENCE OF LATEX, USE KRYLON’S RUST TOUGH. THE COMPANY CLAIMS IT INHIBITS RUST AS WELL OR BETTER THAN OIL-BASED METAL PAINTS. (800) 832-2541.

SCRAPERS - SUPER - SANDVIK PAINT SCRAPERS. CARBIDE BLADES LAST MUCH LONGER. SAVE TIME BY CUTTING FASTER. AVAILABLE AT HARDWARE / PAINT STORES. (800) 225-1153

OIL PAINT DRYER - ACCELERATE DRYING TIME OF OIL-BASED PAINT, AND FINISHING OILS LIKE TUNG OIL & LINSEED OIL WITH JAPAN DRIER - WOODWORKER’ STORE (800) 279-4441 OR AT PAINT RETAILERS WHERE PROS BUY THERE PAINT.  FOLLOW DIRECTIONS CAREFULLY.

WOODWORK PREP FOR WATER-BASED PAINT - P.7 FAMILY HANDYMAN FEB. ‘96.

1- CLEAN WOODWORK WITH NON-SUDSING CLEANER LIKE TSP-90.

2- SAND LIGHTLY WITH 220-GRIT SANDPAPER "FEATHERING" EDGES WHERE PAINT HAS FLAKED.

3- SPOT-PRIME BARE WOOD WITH WATER-BASED ENAMEL UNDERCOAT PRIMER.

4- APPLY GOOD-QUALITY LATEX ENAMEL.

CABINETS - PAINTING - P.61 FHM FEB. ‘96

CAUTION: THIS IS A MULTIPLE COAT JOB REQUIRING 24-48 HOURS BETWEEN COATS.

PAINTABLE TYPES -
-
SOLID WOOD & PLYWOOD WITH VENEER ON FRONT & BACK.
-THIN PLASTIC / VINYL VENEER CAN’T BE SANDED AND PAINT WON’T STICK.
- METAL CABINETS SHOULD BE PAINTED ELECTROSTATICALLY BY PRO.

ARE CABINETS WORTH PAINTING - GENERALLY YES IF THEY’RE NOT BADLY DAMAGED.

STRATEGY -

  1. REMOVE DOORS & DRAWERS & ALL HARDWARE.
  2. WASH EACH SURFACE WITH TSP TO REMOVE ALL DIRT & GREASE.
  3. SAND WITH 100-GRIT SANDPAPER. DON’T REMOVE STABLE OLD FINISH, JUST DULL THE GLOSS. A SANDING SPONGE IS USEFUL.
  4. CONTROL THE DUST USING SHOP VAC AND TACK CLOTH. DUST WILL RUIN THE JOB.
  5. SAND WITH 220 GRIT PAPER BETWEEN PRIME COAT, SPLIT COAT (SPLIT COAT IS A 50/50 MIX OF PRIMER AND FINISH PAINT), AND THE FIRST FINISH COAT.  FOR ADDITIONAL FINISH COATS, JUST USE TACK CLOTH TO REMOVE DUST.  NOTE: A GOOD 2-1/2" CHINA BRISTLE BRUSH (ABOUT $25.00) IS BETTER THAN A HVLP (HIGH-VOLUME, LOW PRESSURE) SPRAYER FOR A DIY.
  6.  PAINTS:
    A) OIL-BASE ENAMEL PRIMER.
    B) SPLIT COAT 50/50 MIX OF PRIMER & FINAL FINISH PAINT.
    C) OIL-BASE ENAMEL FINISH COAT (S).
    NOTE: STRAIN PAINT WITH A MANUFACTURED PAINT STRAINER OR AN OLD
    NYLON STOCKING BEFORE EVERY COAT EVEN IF PAINT IS FRESH FROM THE CAN.
  7. PICK TIME OF LOW HUMIDITY AND MODERATE TEMPERATURE FOR OPTIMUM PAINT DRYING TIME. ALSO KEEP WINDOWS OPEN FOR GOOD VENTILATION.  CAUTION: IF GOOD VENTILATION IS NOT POSSIBLE, DON’T PAINT.
  8. ALLOW 7-10 DAYS FOR JOB.
  9. ALLOW FOR PLENTY OF ROOM TO SPREAD THINGS OUT.
  10. PENETROL USED AS DIRECTED WILL HELP "LEVEL" PAINT

JENNIFER GOT IN TOUCH DURING NOVEMBER '05 ASKING ABOUT A BUG ABATING PAINT ADDITIVE HER FATHER HAD USED ON HIS PORCH THAT DETERRED SPIDERS, BEES AND SO FORTH.  I'D NOT HEARD OF SUCH A THING SO I ASKED HER TO LET US KNOW IF SHE TRACKED THE STUFF DOWN.  IT'S CALLED "BUG JUICE" MANUFACTURED BY THE FOLKS AT WALLA WALLA.  THEIR E-MAIL ADDRESS IS:  http://www.wwenvironmental.com/bug_juice.html  IF YOU CAN'T FIND ANY, THE FOLKS AT HANDY OR GENERAL HARDWARE IN ATLANTA WILL SPECIAL ORDER AS MUCH AS YOU NEED.