View Single Post
Old 09-09-2006, 04:43 AM   #13 (permalink)
sonofagun
Upright
 
Location: Eaton Rapids, MI, USA
I work at a McDonalds, and trust me - I know about grease stains. Once, I dropped something (only technically my fault) in one of the fryer vats and was splashed with 350F vegetable oil. It got all over my uniform shirt (and burned the underside of my forearm a little, but I didn't whine or bitch about it, because it was partially my fault...). When I got home, there was a dark area all over the front of it. After letting it sit for like three days (it's a McDonalds shirt, who the fuck cares ) I decided to finally wash it. All I did was put in the normal clothes-washing detergent (Tide with Bleach was what we had at the time) and squirted a bit of [manual] dish-washing liquid (I think we had Palmolive at the time, but I figure anything decent would do. Maybe look for something that says it's good with grease?) into the wash along with the detergent. When I took my shirt out, it was as good as new.

Trying to think of this somewhat scientifically, I think that grease/oils are non-polar (for an example, water is polar, alcohol is polar - look it up on google), so any sort of non-polar solvent (benzene, ether, chloroform, and I think [because it contains benzene and some other things] gasoline. So, going scientifically, I would think that soaking the shirt in gasoline (or, if you can get ahold of it, benzene of chloroform would probably work better, and be less flammable) then **thoroughly rinsing it with water** (I wouldn't just throw it in the wash. I doubt there would be any sparks in your washing machine, but play it safe!), after the rinse, see if the stain is still there - if it is, try either a different non-polar solvent, or just throw it in the wash and see what happens. If the stain is still there, don't dry the shirt yet - drying it often makes the stain 'set' and even if you can get the oils out of it, it will have already damaged the material. I'm sure you'll figure out something. Just keep in mind that oils are fats and the whole idea is that non-polar means lipisoluable (which means fat-soluable, ie... dissolves fat - oils are fats, so it should dissolve oils).

By all means though - test a little bit of your solvent on an area of the shirt which isn't very visible (ie... if you normally tuck it into your pants, try somewhere near the bottom, otherwise maybe in the armpit or something), just to be certain that it won't stain it yellow or something. Given a white shirt, I would think that it would be safe, but better safe than sorry.
sonofagun is offline  
 

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360