20 



Cleaning 

 in Shop 



Surfaces 

 in Contact 



Erection 

 Marks 



Inaccessible 

 Surfaces 



Machine 

 Finished 

 Surfaces 



Conditions 

 for Painting 



Brushes 



Mixing 

 of Paint 



Application 



Paints 



General 



Unloading 

 and Storing 

 Materials 



201. Before painting, all metal surfaces shall be thoroughly scraped and cleaned 

 of rust, scale, and dirt, either with sand-blast, steel scrapers, or stiff wire brushes; finally, 

 the surfaces shall be dusted off with stiff bristle brushes. Oil, paraffin and grease shall 

 be removed by wiping with benzine or gasoline. 



202A. Surfaces coming in contact shall be cleaned and given one coat of paint 

 No. 1 on each surface before assembling. 



203. Erection marks shall be painted on painted surfaces and must be clear and 

 distinct when materials are shipped. 



204A. All surfaces which may be inaccessible after erection, including top surfaces 

 of stringers, eye bar heads, ends of posts, chords, etc., shall have three coats of paint before 

 erection, of which two shall be applied in the shop. 



205. Machine finished surfaces (except abutting joints and base plates) shall be 

 coated with a mixture of white lead and tallow, applied hot as soon as the surfaces are 

 finished and accepted by the Inspector. 



206. Painting shall not be done in wet or freezing weather, except under cover; 

 and the steel shall be free from moisture or frost when the paint is applied. Material 

 painted under cover in damp or freezing weather, shall be kept under cover until the 

 paint is dry. 



206A. Brushes for painting steelwork shall be cylindrical in shape with a diameter 

 of not over 1]^ inches. All brushes must be "bridled "or bound so as to leave not over 

 2^/2 inches of free bristle. No brushes are to be used which have an overall length when 

 new, from tip of bristle to end of handles, exceeding 14 inches. 



207. The paint shall be thoroughly stirred just before applying, and the pigments 

 shall be kept in suspension. 



208. The paint shall be of proper working consistency and each coat shall be thoro- 

 ughly brushed out and allowed to dry completely before the application of the next coat. 

 The paint shall be carefully worked into all joints and open spaces. The shop coat must 

 be dry before loading on the cars. 



209A. All paints shall be in accordance with the Railway Company's Standard 

 Specifications, or meet with the Engineer's approval. No paints are to be used unless 

 the containers bear the seal of the Railway Company's Inspectors and the Contractor 

 has been notified that the paint is satisfactory for use. No addition of any thinner, 

 adulterant or other substance is to be made to any paint at any time after the con- 

 tainer is opened. 



ERECTION 



210. Unless otherwise specified, the work of erection shall include the furnishing 

 of all necessary tools, erection bolts and equipment, the unloading of the material at 

 the site, and the furnishing and construction of any falsework required. The Contractor 

 shall provide for the cost of labour and all other incidental expenses necessary for the 

 erection and completion of the structure. 



210A. Unless otherwise specified, the Contractor for the erection of the new struc- 

 ture shall also remove any or all existing timber or steel bridge structures which may be 

 replaced by the new structure or which may be specified by the Engineer. 



211A. When the erection work is finally completed, the Contractor shall remove 

 from the site all falsework, rejected materials and debris caused by his operations and 

 leave the site in as clean and tidy a condition as he found same. This work shall be done 

 without any additional cost to the Railway Company. 



212A. Cars containing materials or plant shall be promptly unloaded by the Contrac- 

 tor upon delivery, and in case of failure to do so the Contractor shall be liable for the 

 Railway Company's regular demurrage charges. 



